Definition

1. Noun:
   • (Linguistics) A distribution pattern of related speech sounds or linguistic forms where each occurs only in distinct, mutually exclusive environments or contexts. This means that in a given language, two or more elements (such as phonemes or allomorphs) never appear in the same phonetic or grammatical context; the presence of one predicts the absence of the other(s). It is a key concept for identifying allophones of a single phoneme.

Examples of Usage

• Noun:
  • In English, the aspirated [pʰ] and unaspirated [p] sounds are in complementary distribution; [pʰ] occurs at the beginning of a stressed syllable, while [p] occurs elsewhere.
  • The linguist used the principle of complementary distribution to argue that the two sounds were allophones of a single phoneme.

Advanced Usage

• "To be in complementary distribution": This is the standard phrase used to describe the relationship between the elements.
  • The velar and uvular fricative variants were found to be in complementary distribution based on the preceding vowel.

Variants and Related Words

• Complementary (adj): Completing or making perfect; combining in such a way as to form a complete whole.
  • The two theories are complementary, not contradictory.
• Distribution (n): The way in which something is shared or spread over an area, group, or period. In linguistics, it specifically refers to the set of contexts in which a linguistic unit can occur.
  • The study examined the geographic distribution of the dialect feature.

Synonyms

• Mutually exclusive distribution: A more general term emphasizing that the occurrences do not overlap.
• Non-contrastive distribution: Highlights that the elements do not serve to distinguish meaning in the language.

Related Phrases

• Contrastive distribution: The opposite relationship, where linguistic elements can appear in the same environment and create a difference in meaning (e.g., /p/ and /b/ in "pat" vs. "bat").
• Free variation: A relationship where two forms can appear in the same context without changing meaning, which contrasts with complementary distribution.

Noun

1. (linguistics) a distribution of related speech sounds or forms in such a way that they only appear in different contexts