fatigue

From Wiktionary

Pronunciation[change]

Noun[change]

Singular
fatigue

Plural
fatigues

  1. Fatigue is the extreme tiredness which is the result of having mental or physical exertion or illness.
  2. (engineering) Fatigue is the material failure, such as cracking or separation, caused by stress on the material.
    Mechanical failures due to fatigue have been the subject of engineering efforts for more than 150 years.

Verb[change]

Plain form
fatigue

Third-person singular
fatigues

Past tense
fatigued

Past participle
fatigued

Present participle
fatiguing

  1. If you fatigue a person, you make them exhausted.