Understanding Linguistic Tones: Definition and Examples
Languages are diverse and fascinating, each with its own unique features. Tonal languages represent a distinct category within the world's languages, characterized by the use of pitch patterns to convey meaning. In this post, we will take a look into what tonal languages are, how they work, and provide examples to illustrate their significance.
What is a Tonal Language?
A tonal language is any language where the pitch or inflection of a word changes its meaning. In tonal languages, the meaning of a word or phrase depends not only on the arrangement of consonants and vowels but also on the pitch or tone with which the word is spoken. In tonal languages, changing the pitch or tone of a word can alter its meaning, even if the consonants and vowels remain the same. Most of these pitch changes indicate what direction the tone is going.
A “flat” tone has a neutral pitch, while a “rising” pitch starts with a low tone and ends higher. In tonal languages, the pitch patterns typically fall into a limited number of categories or tones, each associated with specific meanings.
Tone is the use of pitch in language to distinguish lexical or grammatical meaning-that is, to distinguish or to inflect words. All oral languages use pitch to express emotional and other para-linguistic information and to convey emphasis, contrast and other such features in what is called intonation, but not all languages use tones to distinguish words or their inflections, analogously to consonants and vowels.
Languages that have this feature are called tonal languages; the distinctive tone patterns of such a language are sometimes called tonemes, by analogy with phoneme. Most languages use pitch as intonation to convey prosody and pragmatics, but this does not make them tonal languages.
In tonal languages, each syllable has an inherent pitch contour, and thus minimal pairs (or larger minimal sets) exist between syllables with the same segmental features (consonants and vowels) but different tones.
Types of Tonal Languages
There are two main types of tone languages: register-tone, or level-tone, languages and contour-tone languages. Register-tone languages use tones that are level; i.e., they have relatively steady-state pitches, which differ with regard to being relatively higher or lower. This is characteristic of many tone languages in West Africa. In contour-tone languages at least some of the tones must be described in terms of pitch movements, such as rises and falls or more complex movements such as rise-falls.
Many tone languages have only two tones, normally identified as a high tone (often abbreviated as H) and a low tone (often abbreviated as L). High tones have a higher pitch (with the vocal folds vibrating faster), and low tones have a lower pitch (with the vocal folds vibrating slower). Note that there is no single consistent rate of vibration for high and low tones. For languages with only a few tones, the tone diacritics are normally used, with the acute accent [ ˊ ] representing a high tone and the grave accent [ ˋ ] representing a low tone.
One of the ways that tones can be more complex is that they are often not simply binary, with just a high versus low distinction. Many tone languages also have a mid tone (M) that is intermediate between high and low.
So far, we have only looked at level tones (high, mid, low), which have relatively stable pitch from beginning to end. However, many tone languages also have contour tones, which change in pitch during the course of the syllable. Falling tones are represented with an IPA diacritic, the caret accent [ ˆ ], with a sequence of a high IPA tone letter followed by a low tone letter (usually [ ˥˩ ]), or with a sequence of superscript numbers that starts high and goes low (usually [ 51 ]). Similarly, rising tones are represented with an IPA diacritic, the haček accent [ ˇ ], with a sequence of a low IPA tone letter followed by a high tone letter (usually [ ˩˥ ]), or with a sequence of superscript numbers that starts low and goes high (usually [ 15 ]).
Most varieties of Chinese use contour tones, where the distinguishing feature of the tones are their shifts in pitch (that is, the pitch is a contour), such as rising, falling, dipping, or level. Most Bantu languages (except northwestern Bantu) on the other hand, have simpler tone systems usually with high, low and one or two contour tone (usually in long vowels). In such systems there is a default tone, usually low in a two-tone system or mid in a three-tone system, that is more common and less salient than other tones.
Examples of Tonal Languages
Over one billion people speak a tonal language, including Mandarin and other languages in Asian and African countries.
Examples such as Mandarin Chinese, Thai, Yoruba, and Vietnamese illustrate the diverse ways in which tone influences linguistic expression.
Tonal languages are found in many parts of the world, including some that you might not expect. East Asia, with the mostly tonal Sino-Tibetan (including many of China’s languages) and Tai-Kadai (including Thai) families, is perhaps the most known for them; however, tonal languages are also found widely across the Americas and Africa.
Here are some specific examples of tonal languages:
- Mandarin Chinese: Mandarin is one of the most well-known tonal languages, with four main tones and a neutral tone. Mandarin is a well-known example of a tonal language and one of the most spoken languages in the world. When writing Mandarin in English, we use the Pinyin (sound spelling) writing system. Pinyin includes tone marks above syllables to indicate which tone each syllable uses. You may also see each tone indicated with subscript numbers within the Anglicized word.
- Thai: Thai is another tonal language with five main tones. Like other tonal languages, Thai uses tone marks to indicate the pitch and meaning of a word. Of the 40 million Thai speakers around the world, most learn Thai from birth. Their ability to change a word’s meaning comes more naturally than someone learning Thai as a second language.
- Vietnamese: Vietnamese is another tonal language with six main tones. More than 85 million people worldwide speak Vietnamese, primarily in Vietnam. While Vietnamese is a tonal language, it is syllable-timed rather than stress-timed. In Vietnamese, for example, the ngã and sắc tones are both high-rising but the former is distinguished by having glottalization in the middle. Similarly, the nặng and huyền tones are both low-falling, but the nặng tone is shorter and pronounced with creaky voice at the end, while the huyền tone is longer and often has breathy voice.
- Yoruba: Yoruba, spoken in West Africa, is a tonal language with three primary tones (high, mid, and low). In Yoruba, much of the lexical and grammatical information is carried by tone.
- Cantonese: Around 75 million people speak Cantonese in southern Chinese provinces, including Guangdong and Guangxi, as well as Hong Kong. Three additional tones exist in Cantonese words that end with a stop consonant (a word ending in which airflow stops). Cantonese is closely related to ancient Chinese and is regarded as one of the most difficult languages to learn. Its varied vowel length and six tones make word meanings somewhat unpredictable.
- Punjabi: Approximately 150 million people speak Punjabi worldwide, primarily in India and Pakistan. While Punjabi is a tonal language, it does not rely on tones to the same extent as others, such as Mandarin. Punjabi is one of the only Indo-Aryan languages that includes tonal elements.
| Language | Number of Tones | Notes |
|---|---|---|
| Mandarin Chinese | 4 main tones + 1 neutral tone | Well-known tonal language |
| Thai | 5 main tones | Tone marks indicate pitch and meaning |
| Vietnamese | 6 main tones | Syllable-timed |
| Yoruba | 3 primary tones (high, mid, low) | Lexical and grammatical information carried by tone |
| Cantonese | 6 tones | Closely related to ancient Chinese |
| Punjabi | Tonal elements | One of the only Indo-Aryan languages with tonal elements |
Tone vs. Intonation
It's important to distinguish between tone and intonation. Most languages use pitch as intonation to convey prosody and pragmatics, but this does not make them tonal languages. Linguistic tone is more integral to meaning: it’s where raising or lowering the pitch across a syllable, word, or whole sentence changes which word you’re saying, or something about the grammar.
Pitch is often intertwined with duration and intensity for stress systems in spoken languages, but it can also be manipulated separately as part of its own distinct system. Roughly speaking, if pitch is manipulated at the level of syllables or entire words to make completely different meanings, it is called tone, whereas if pitch is manipulated at combinations of words (phrases and sentences) to have different kinds of conversational functions (statements versus questions, for example), it is called intonation.
Finally, we can also see changes in pitch over entire sentences as intonation, with the purpose of conveying information about the function of the sentences rather than information of which word is being used. Intonation is very complex, as it depends on the syntactic structure of what is being said, as well as the function of the sentence in the larger conversation. It can also interact with word-level stress or tone in various interesting ways.
English is not a tonal language. But if you’re a native English speaker, you’ve likely played with tone when posing a question. The rising intonation at the end of your sentence indicates that you’re looking for an answer. However, it’s important to remember that in tonal languages, the tones aren’t used to convey questions or emotions.
Pitch-Accent Languages vs. Tonal Languages
Pitch-accent languages differ from tonal languages in that only one syllable of a word receives a change in pitch, rather than every syllable (as in tonal languages). Because some pitch accents resemble tonal languages in their pitch changes, some linguists consider them to be in a subcategory of tonal languages.
Japanese and Turkish are also agglutinative languages-and they are pitch-accent languages as well. They change word meanings both by adding affixes to a word and changing one syllable’s pitch.
The Significance of Tonal Languages
Tonal languages offer unique linguistic challenges and insights. They demonstrate how the same set of phonemes can be assigned multiple meanings through pitch variations. Furthermore, tonal languages are often deeply intertwined with the cultures and traditions of their speakers. The significance of tonal languages extends beyond their linguistic intricacies; they offer a gateway to understanding the cultural richness of the communities that speak them.
Because of their tone systems and varied word meanings based on specific pitch changes, tonal languages are considered difficult to learn. However, many language learners pick up tonal languages with study, practice, and strong learning tools. Mandarin is a common second language for students, especially in the international business world.