The meaning of FIRE UP is to start (something) by lighting a fire. How to use fire up in a sentence.

FIRE UP definition: Inflame with enthusiasm, anger, or another strong emotion, as in Her speech fired up the crowd in favor of her proposals . This expression dates from the early 1800s, when it referred …

FIRE SOMEONE UP definition: 1. to make someone become excited or angry: 2. to light something: 3. to start a machine or…. Learn more.

Definition of fire up phrasal verb in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Dec 14, 2025 · Verb fire up (third-person singular simple present fires up, present participle firing up, simple past and past participle fired up) (transitive) To ignite. Synonyms: inflame, kindle; see also …

To excite; to infuse with energy. The band went out to fire up the crowd before the game.

From Longman Dictionary of Contemporary English fire somebody ↔ up phrasal verb to make someone become very excited, interested, or angry It was alarming the way she got so fired up about small …

to create enthusiasm or excitement, usually among a group of people or a crowd. fire up sb The coach fired up his players with his half-time talk, and they tried much harder in the second half. be fired up …

Inflame with enthusiasm, anger, or another strong emotion, as in Her speech fired up the crowd in favor of her proposals. This expression dates from the early 1800s, when it referred literally to starting a …

If you fire someone up, you make them feel very enthusiastic or motivated. The president knows his task is to fire up the delegates. [VERB PARTICLE noun]