Definition of "go-ahead" in English

noun

1. Approval, agreement, or instruction to begin or proceed.

   • You can start as soon as you get the go-ahead from the president.

2. (dated, usually in the plural) A flip-flop (footwear).

adjective

1. (comparable) Progressive; exerting leadership.

   • I work for a very go-ahead company that's always looking for new ideas.

2. (comparable) Dashing; energetic.

3. (sports, not comparable) Being a score which gives the scoring team or player the lead in the game.

   • The pitcher gave up the go-ahead run in the top of the ninth inning.