deflate

(v) collapse by releasing contained air or gas
- deflate a balloon
(v) release contained air or gas from
- deflate the air mattress
(v) reduce or lessen the size or importance of
- The bad review of his work deflated his self-confidence
puncture,
(v) produce deflation in
- The new measures deflated the economy
(v) reduce or cut back the amount or availability of, creating a decline in value or prices
- deflate the currency
(v) become deflated or flaccid, as by losing air
- The balloons deflated

puncture

inflate blow up

deflated