賛助|さんじょsanjo[1]atamadaka (head-high)

1. noun, suru verb, transitive verbsupport; patronage

• Synonym援助えんじょNeutralHelping people or groups in need; neutral. 「賛助」 stresses agreeing with a cause's aims and funding it, as in 「賛助会員」.
• Synonym支援しえんNeutralGiving help or backing, as in 「被災地支援」; stresses lending a hand rather than endorsing a cause's aims.
• Synonym支持しじNeutralBacking or endorsing a person, policy or idea, as in 「支持率」; stresses agreeing with a stance, not funding it.
• Synonym後援こうえんNeutralBacking or sponsoring an activity from behind the scenes, as in 「後援会」; stresses standing behind it.
• SynonymサポートNeutralLoanword for support or aid; colloquial and used across a very wide range of situations.
• SynonymバックアップNeutralLoanword for backing someone up from behind, also data backup; stresses support from the rear.
• Synonym協賛きょうさんNeutralEndorsing and backing an event; open to companies, groups and individuals, as in 「協賛企業」, while 「賛助」 appears mostly as 「賛助会員」.
• Synonym肩入れかたいれNeutralTaking sides and favoring one party; stresses partiality rather than sponsorship of a cause.
• Related援護えんごNeutralCovering and protecting while supporting; mostly military or welfare contexts, not sponsorship of a cause like 「賛助」.
• Related助けるたすけるNeutralVerb meaning to help or rescue; colloquial and the broadest of these words, covering everything from saving to aiding.
• Related後ろ盾うしろだてNeutralBacking from behind the scenes, or the backer who provides it; stresses having an influential, powerful supporter rather than endorsing a cause's aims.
• Related応援おうえんNeutralCheering people on or supporting them; stresses encouragement and need not involve money.
• Related補助ほじょNeutralSubsidizing or supplementing what is lacking, as in 「補助金」; stresses filling a shortfall.
• Related助成じょせいNeutralFunding a project, as in 「研究助成」; stresses economic backing.
• Related補佐ほさNeutralAssisting a superior in their duties; about helping in one's role, not sponsoring a cause.
• Related扶助ふじょNeutralHelping or supporting someone, as in 「生活扶助」; leans toward welfare and legal usage.
• Related後押しあとおしNeutralColloquial word for pushing something along from behind; stresses giving a boost.
• Related加勢かせいNeutralJoining in to help one side, like reinforcements; stresses taking sides rather than sponsoring.
• Related助力じょりょくNeutralLending a hand; written/formal prose, focused on the assistance itself, without the particular stress on endorsing a cause's aims that 「賛助」 has.
• Related力添えちからぞえWrittenWritten/formal word for lending a hand, as in 「お力添えをいただく」; stresses effort, while 「賛助」 stresses endorsing a cause.
• Related手伝うてつだうNeutralVerb meaning to help with a task, or to be a factor in bringing something about; colloquial.
• Antonym妨害ぼうがいNeutralAntonym: obstructing or interfering with something, the opposite of sponsoring and cooperating as 「賛助」 does.
• Antonym反対はんたいNeutralAntonym: opposing something, the opposite of endorsing and assisting as 「賛助」 does.

Use 「賛助」 for agreeing with a cause's aims and supporting it with money and effort, as in 「賛助会員」 and 「賛助金」. For corporate sponsorship say 「協賛」, for backing from behind 「後援」, and for general aid 「援助」 or 「支援」. The antonyms are 「妨害」 and 「反対」.

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

1. 事業じぎょうの趣旨しゅしに賛同さんどうし協力きょうりょくすること。