Definition of "blow-up" in English

adjective

1. Inflatable; able to be blown up.

   • The kids played with a blow-up sea-monster in the pool.

noun

1. (informal) An explosion (physical or emotional).

   • I heard Jen's blow-up from the next room.

2. (informal) An enlargement (e.g. of a photograph).

   • Make a blow-up of the chart so we have more room to draw on it.