exertion

Từ điển WordNet v3.1 - WordNet Dictionary

noun

use of physical or mental energy;
hard work (Freq. 6)
- he got an A for effort
- they managed only with great exertion
• Syn:
effort, elbow grease, travail, sweat
• Derivationally related forms:
travail (for: travail), exert
• Hypernyms:
labor, labour, toil
• Hyponyms:
struggle, trouble, difficulty, least effort, least resistance,
strain, straining, exercise, exercising, physical exercise, physical exertion,
workout, pull, application, diligence, overkill, supererogation,
overexertion, friction, detrition, rubbing

• Từ đồng nghĩa / Synonyms:
  effort, elbow grease, travail, sweat