ため・為・爲・為めtame[2]odaka (tail-high)

1. noun, adverbgood; advantage; benefit; welfare
   あなたのためなら喜よろこんでどんなことでもします。↗

   I am ready to do anything for you.
2. noun, adverbsake; purpose; objective; aim
   １月がつ３０日にち、３１日にちは葬式そうしきのため休やすみます。↗

   I'm taking bereavement leave on Jan. 30 and 31.

   それは、おまえの声こえをよく聞きくためだよ。↗

   It is in order to hear your voice well.
3. noun, adverbconsequence; result; effect
4. noun, adverbaffecting; regarding; concerning

• Synonym利益りえきWrittenWritten register. Monetary profit, or benefit and interests more broadly, as in 「利益を上げる」; it leans toward economic returns.
• Synonym益えきWrittenWritten register. Means benefit or usefulness, mostly in set phrases like 「益がない」 or 「公益」; not for purpose or reason.
• Synonym利得りとくWrittenWritten register. Profit or gains acquired, used mostly in legal contexts such as 「不当利得」.
• Synonym福利ふくりWrittenWritten register. Happiness and benefit together, mostly in 「福利厚生」; centers on employee welfare and treatment.
• SynonymプラスCasualColloquial loanword. A plus or advantage, as in 「プラスになる」; common in everyday speech.
• SynonymベネフィットCasualColloquial loanword for a benefit or gain, used mainly in business contexts.
• Synonym便益べんえきWrittenWritten register. Convenience and benefit combined, used in economics and policy, as in 「費用便益分析」.
• Synonym裨益ひえきWrittenVery literary written word meaning to benefit or help; extremely rare in modern use.
• Related恩恵おんけいWrittenWritten register. Favors or blessings received from others or from nature, as in 「自然の恩恵」.
• Related便宜べんぎWrittenWritten register. Convenience or special accommodation, as in 「便宜を図る」; about making things easier, not benefit in general.
• Related有益ゆうえきWrittenWritten register. An adjectival noun meaning beneficial or useful, as in 「有益な情報」; describes things, not purpose.
• Related福祉ふくしFormalFormal. Social welfare, as in 「社会福祉」; centers on public support and services rather than personal benefit.
• Related厚生こうせいFormalFormal. Promoting health and comfortable living, mostly in 「福利厚生」 and 「厚生労働省」.
• Related恩おんNeutralNeutral. A favor or kindness received from others, as in 「恩を返す」; the stress falls on the personal bond and the sense of obligation it creates.
• Related特典とくてんNeutralNeutral. Complimentary perks or special offers, as in 「会員特典」; extra benefits on top of the main deal.
• Related恩沢おんたくFormalFormal and archaic. Grace bestowed by gods, Buddhas, or a lord; rarely used in modern Japanese.
• Related恵沢けいたくFormalFormal. Blessings or favors; its typical home is the wording of statutes, as in 「自由の恵沢」.
• Related特恵とっけいWrittenWritten register. Special preferential treatment, mostly in trade terms like 「特恵関税」.
• Related恩徳おんとくFormalFormal and archaic. Grace and virtue, used mainly in Buddhist contexts or eulogies.

Use 「ため」 for purpose or reason; in 「ためになる」 it means good for someone. For concrete gains pick 「利益」 or 「益」; for blessings received, 「恩恵」; for social welfare, 「福祉」; for complimentary perks, 「特典」; for a personal debt of gratitude, 「恩」. The others are narrower: 「便宜」 convenience, 「有益」 beneficial, 「福利」「厚生」 employee and public welfare, 「便益」 policy convenience, 「利得」 legal gains, 「特恵」 trade preferences, 「恵沢」 blessings in legal texts, 「プラス」 a colloquial plus, 「ベネフィット」 business benefit, and the archaic 「恩沢」「恩徳」.

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

1. （ため）行為こういの目的もくてきを受うける副詞ふくし的てき形式けいしき名詞めいし
2. （ため）行為こういの原因げんいん・理由りゆうを受うける副詞ふくし的てき形式けいしき名詞めいし
3. （ため）利益りえき、有利ゆうりとなること。