Synonyms for "boster" (109 found)

Ranked by relevance and common usage.

Closest matches (22)

padadvanceaffirmafford supportaidair mattressassistassureattestauthenticatebackback upbasebearbear outbear upbeddingbolster upbracebrace up

Show 1 more word

buck up

Verb(1 words)

bolster up

Strong matches (33)

buoy upbuttresscarrycertifycheercircumstantiateconfirmcorroboratecradlecrutchcushiondocumentdutch wifeemboldenencourageexpandfinancefollowfortifyfund

Show 10 more words

furthergirdgive supportheartenhelpholdhold upinnerspring mattressinspireinspirit

Noun(3 words)

crossheaddutch wifehotdog pillow

Related words (54)

keepkeep afloatkeep uplend supportlittermainstaymaintainmatmattressnervenurturepalletpat on the backperpetuatepillowprobatepropprop upproveratify

Show 31 more words

reassurereinforcereinforcementrugshoreshore upshouldersleeping bagspringspringsstaystrengthensubsidizesubstantiatesubventionsubventionizesupportsustainunderbedunderbeddingunderbraceundergirdunderlieunderpinundersetupbearupholdupkeepvalidateverifywarrant

Noun(2 words)

long pillowpillow

Verb(1 words)

pad

Sample sentences

1 total sentences available.

Tatoeba + Wiktionary

Then the fat woman! ooh, my word! she wor a boster; […]

Source: wiktionary

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.