1.
assistance, aid, support
Help provided to supplement or support someone or something. Used broadly for physical assistance, supplementary functions, or auxiliary roles.
自転車の補助輪を外す。
Remove the training wheels from a bicycle.
先生の補助をしながら授業を進めた。
I assisted the teacher while progressing with the lesson.
このソフトは入力を補助する機能が充実している。
This software has well-developed input assistance features.
2.
subsidy, financial aid, grant
Financial support provided by a government or organization to assist with costs. Commonly seen in compounds like 補助金.
補助金を申請する。
Apply for a subsidy.
国から補助が出る。
Financial aid is provided by the government.
子育て世帯に対する補助金の拡充が検討されている。
An expansion of subsidies for child-rearing households is being considered.
USAGE NOTE:
補助 is extremely common in compound words and as a modifier meaning "auxiliary" or "supplementary." It can also function as a する verb meaning "to assist" or "to subsidize."
COMMON COLLOCATIONS:
- 補助金 (subsidy, grant)
- 補助輪 (training wheels)
- 補助席 (extra seat, folding seat)
- 補助的 (supplementary, auxiliary)
- 補助を受ける (receive assistance/a subsidy)
SIMILAR WORDS:
- 援助: aid, assistance (larger-scale, often international)
- 助成: financial support, grant aid (mainly monetary, institutional)
- 支援: support (broader, includes non-financial help)