Collocation is the tendency of words to co-occur in natural language with a frequency greater than chance. Native speakers say "make a decision" not "do a decision," "heavy rain" not "strong rain," "deeply concerned" not "very concerned." These combinations are not governed by grammar rules; they are conventions of use, stored and retrieved as units.
The concept was first formalized by J.R. Firth (1957): "You shall know a word by the company it keeps." It became central to ELT through Michael Lewis's Lexical Approach (1993), which argued that fluent language use depends more on retrieving pre-fabricated chunks than on generating sentences from grammar rules.
Grammatical collocations: a content word + a grammatical word (preposition, infinitive):
Lexical collocations: content word + content word:
| Pattern | Examples |
|---|---|
| Adjective + noun | strong coffee, heavy traffic, bitter disappointment |
| Verb + noun | make progress, take action, pay attention, raise concerns |
| Adverb + adjective | highly unlikely, deeply moved, utterly ridiculous |
| Verb + adverb | decline sharply, strongly recommend, flatly refuse |
| Noun + noun | birth rate, side effect, power supply |
Collocations are not binary (fixed or free); they sit on a continuum:
Most teaching attention should focus on the middle zone: collocations that are frequent enough to sound natural but not so fixed that they are simply memorized as idioms.
Naturalness: collocational errors rarely cause misunderstanding, but they mark a speaker as non-native. "Do a mistake" is intelligible but immediately signals a learner. Building collocational knowledge is one of the most efficient routes to sounding natural.
Processing speed: collocations stored as chunks are retrieved faster than language assembled word by word. This is why collocational knowledge correlates strongly with fluency (Boers et al. 2006).
Receptive depth: knowing a word's collocational profile means knowing it deeply. A learner who knows "make" only as "create/produce" will be confused by make a decision, make progress, make an effort, make a mistake. Collocational knowledge is vocabulary depth.
Collocation is the connective tissue of natural language. It links to Lexical Sets (but is a more productive organizing principle for vocabulary teaching), to MFP (collocational information is part of form analysis), and to Lexical Approach (which places collocations at the centre of language learning).