deflate

(verb) collapse by releasing contained air or gas. Example: "Deflate a balloon."

(verb) release contained air or gas from. Example: "Deflate the air mattress."

(verb) reduce or lessen the size or importance of. Synonyms: puncture. Example: "The bad review of his work deflated his self-confidence."

(verb) produce deflation in. Example: "The new measures deflated the economy."

(verb) reduce or cut back the amount or availability of, creating a decline in value or prices. Example: "Deflate the currency."

(verb) become deflated or flaccid, as by losing air. Example: "The balloons deflated."