diminish is on the Academic Word List.

Pronunciation

change

Plain form
diminish

Third-person singular
diminishes

Past tense
diminished

Past participle
diminished

Present participle
diminishing

  1. (transitive & intransitive) When something diminishes it gets smaller or less important or makes something that way.
    The way you talked just now diminished my respect for you.
    The amount of water in the lake is diminishing because there has been no rain.
change