Word parts change

smart + -en

Pronunciation change

Verb change

Plain form
smarten

Third-person singular
smartens

Past tense
smartened

Past participle
smartened

Present participle
smartening

  1. (transitive) If you ask someone to smarten up, you want them to make themselves look clean and tidy.
  2. (transitive) If you ask someone to smarten up, you want them to stop being silly or foolish.

Related words change