肩入れ|かたいれkataire[0]heiban (flat)

1. noun, suru verb, intransitive verbsupport; backing; patronage

• Synonym加担かたんNeutralTaking a side and lending a hand, often in wrongdoing or conspiracies, with a negative tinge; 「肩入れ」 is backing one side out of personal favoritism.
• Synonym支援しえんNeutralPractical aid with supplies, money or manpower, often by governments and organizations; lacks the favoritism of 「肩入れ」.
• Synonym後ろ盾うしろだてNeutralA backer or patron standing behind you, stressing a powerful connection; refers to the person or relationship itself.
• Synonym加勢かせいNeutralJoining a side to swell its strength, mostly in fights or contests; stresses taking sides and pitching in.
• Synonym助力じょりょくWrittenWritten word for lending a hand, often help with work or projects; no nuance of favoritism.
• Synonym力添えちからぞえNeutralA respectful way of offering help, often as the honorific 「お力添え」; carries none of 「肩入れ」's partiality.
• Synonym賛助さんじょWrittenBacking a cause whose aims you endorse; common in 「賛助会員」, supporting membership of an organization.
• Synonym支持しじNeutralBacking a person or view by agreeing with their stance, as in 「支持率」; can also arise from personal liking.
• Synonym後援こうえんNeutralSponsorship from behind the scenes, often by an organization as official 「後援」; tends to involve formal events.
• Synonym後押しあとおしCasualLiterally a push from behind; colloquial for encouragement that helps something along, stressing the push toward a goal.
• SynonymサポートNeutralLoanword for support or help, at home in business and everyday use; neutral in tone.
• Synonym尻押ししりおしCasualRare colloquial word: a push from behind, figuratively backing a plan behind the scenes, or even egging someone on.
• Related助成じょせいWrittenFunding given by governments or public bodies to further a project, stressing financial backing; institutional in flavor.
• Related扶助ふじょWrittenSupport for people's livelihoods, seen in institutional terms like 「相互扶助」 and 「生活扶助」.
• Related助け舟たすけぶねCasualColloquial for a timely helping hand, often 「助け舟を出す」; about getting someone out of a tight spot.
• Related援助えんじょNeutralHelp for people or groups in trouble, from funds and supplies to everyday favors between individuals; no favoritism nuance.
• Related応援おうえんNeutralCheering on or reinforcing, stressing moral encouragement; does not necessarily imply favoritism.
• Related補佐ほさWrittenFormal word for assisting a superior in their duties, often as a job title like 「課長補佐」.
• Related援護えんごWrittenFormal word for covering and protecting someone, including military cover; stresses protection.
• Related介添えかいぞえWrittenFormal word for attending to someone at their side, also a bridesmaid or helper; stresses personal care and attendance.
• Related幇助ほうじょWrittenLegal term for helping someone commit a crime, as in 「自殺幇助」; entirely different from favoritism-based support.
• Related支えささえNeutralThe prop or pillar one relies on, including emotional support, as in 「心の支え」; stresses the thing depended on.
• Related援護射撃えんごしゃげきWrittenCovering fire, used figuratively for backing up an ally in a debate or dispute; written/formal.

Use 「肩入れ」 for backing someone out of personal favoritism. For support in general use 「支持」 or 「応援」; for practical aid 「支援」 or 「援助」. 「加担」 is joining in wrongdoing, 「後ろ盾」 a powerful backer, 「後押し」 a push of encouragement. Formal or special senses: 「助力」, 「力添え」, 「補佐」, 「介添え」 (assisting); 「助成」, 「扶助」, 「賛助」 (institutional funding or sponsorship); 「幇助」 (abetting a crime); 「援護」, 「援護射撃」 (covering); 「支え」 (emotional pillar); 「サポート」 (loanword); 「助け舟」, 「尻押し」 (colloquial).

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

1. 衣服いふくの肩かたの部分ぶぶんに別べつの布ぬのを当あてて縫ぬうこと。
2. 贔屓ひいきすること。