実力|じつりょくjitsuryoku[0]heiban (flat)

1. noun(real) ability; true strength; merit; efficiency; competency
   けっきょく、実力じつりょくが勝かつ。↗

   Real ability wins in the end.
2. nounarms; force

• Synonym能力のうりょくNeutralThe broadest term for the power to get something done (「能力を伸ばす」「能力を発揮する」); 「実力」 stresses the level you actually possess and can prove.
• Synonym腕うでNeutralColloquial: one's knack or craft (「腕がいい」「腕を磨く」), used mostly for skill in an art or trade.
• Synonym力量りきりょうWrittenWritten/formal prose for ability or caliber (「力量が問われる」); more literary than the everyday 「実力」.
• Synonym才能さいのうNeutralInnate talent (「才能がある」), stressing what one is born with rather than achieved.
• Related技量ぎりょうNeutralDegree of technical skill (「技量を発揮する」), used mostly for the arts and sports.
• Related技術ぎじゅつNeutralTechnique or technology (「技術を磨く」); also covers science and technology at large.
• Related能のうNeutralTalent or ability (「能がない」), now mostly in fixed expressions.
• Related才さいWrittenWritten/formal prose for talent (「才に恵まれる」); mostly seen as a suffix.
• Related熟練じゅくれんNeutralProficiency (「熟練工」), stressing skill built up through experience.
• RelatedスキルNeutralA loanword for skills (「スキルアップ」), used mostly in workplace contexts.
• Related甲斐性かいしょうNeutralColloquial: the ability to earn a living and support a family (「甲斐性がない」), said mostly of men.
• Related才腕さいわんWrittenWritten/formal prose for executive talent or resourcefulness; rare.
• Related熟達じゅくたつWrittenWritten/formal prose for mastery or proficiency; rare.
• Related手練しゅれんNeutralSuperb, practiced technique (「手練の早業」), with an old-fashioned flavor.
• Related手練れてだれNeutralA master or veteran of a craft (「手練れの剣士」), found mostly in fiction.

Use 「実力」 for the level of ability you actually have and can show, as in 「実力を発揮する」 or 「実力がある」. For ability in general pick 「能力」, for inborn talent 「才能」, for craft or knack 「腕」, for technique or technology 「技術」, for workplace skills 「スキル」, and for proficiency built through experience 「熟練」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 実際じっさいに持もっている力ちから。
2. 力ちからの限界げんかい、力量りきりょう不足ふそくといったニュアンス。
3. 暴力ぼうりょくや武力ぶりょくなど、目的もくてきを遂行すいこうするために振ふるわれる力ちから。