The meaning of words and phrases is determined by applying the rules of
lexicon
phonemes
overgeneralization
semantics

Language is called as a system that is used for communication. It involves the use of systematic rules and words. The words are organized to transmit the information from one individual to another.

Lexicon indicates the words that are present in the given language. Phonemes are the basic sounds present in the given languages. There are different phonemes of different languages. Over generalization means an extension of the rule of language to the rule’s exception

productive most commonly means: achieving or producing a significant amount or result.

explanation:

productive can also mean:

these depend on how the word productive is used. most likely productive will mean   achieving or producing a significant amount or result.