腕

to gain in skill; to improve; to get better

Adjective - yoi/ii class

skilled; skillful; skilful; competent; capable; good

opportunity to show one's abilities; time to show one's stuff; one's province

biceps brachii muscle

to become less capable

unskilled; not very good at

Idiomatic expression

not worth doing; waste of effort

Idiomatic expression; Godan verb with 'ru' ending (irregular verb)

to have confidence in one's own abilities

unskilled; incompetent; poor; bad

Idiomatic expression

to have one's ability acknowledged by others; to be appreciated for one's skill

Nouns which may take the genitive case particle 'no'; Adjectival nouns or quasi-adjectives (keiyodoshi)

able; capable; competent

Common noun

able person; person of ability

diplomatic finesse; skill(s) in diplomacy

Martial arts

armlock

being enraged (indignant, impatient); gnashing the teeth and clenching the arms on the breast (in anger or regret)

outstretched arms

naughty boy; mischievous boy; little rascal; brat

triceps brachii muscle

dexterity; skill

naughty boy; mischievous boy; little rascal; brat

to look on with arms folded

Sumo

to place one's arms under those of the opponent and lift them up, in order to prevent an overhand grip on one's mawashi

Character

Astro Boy (Japanese anime character)

(at the) peak of mischievousness; little demon (of children)

skill at administration; one's administrative skills