verb
Word family
Synonym discussion
Sense: noun/1
'Verb' and 'predicate' are related but not interchangeable. A verb is a single word class ('run', 'exist'), while a predicate is the whole part of a sentence that tells what the subject does or is — it includes the verb plus any objects or complements. For example, in 'The cat slept on the sofa,' the verb is 'slept' but the predicate is 'slept on the sofa.' 'Action word' is an informal label used with young children; it only covers verbs that show physical actions and misses stative verbs like 'know' or 'belong.' Use 'verb' for precise grammatical discussion; use 'predicate' when analysing full sentence structure, and avoid 'action word' in academic contexts.
Etymology
The word 'verb' comes from Latin 'verbum,' meaning 'word.' In Latin grammar, 'verbum' was used specifically for the part of speech that expresses an action or state, distinguishing it from 'nomen' (noun). The term entered English through Old French 'verbe' in the 1400s and has kept the same grammatical meaning ever since.