count in

Verb

transitive

Japanese Meaning

（誰かを）活動に加える、参加させる / （特に音楽の演奏時に）始まる前にカウントダウンを行う

If you're planning to go hiking on Saturday, count me in.

土曜日にハイキングに行く予定なら、私も参加させてください。

Sense（1）

(transitive) to include (someone) in an activity, etc.

You're going to the beach? Count me in!

Sense（2）

(transitive) to do a countdown before the start of something, especially a musical performance.

The drummer will count us in with a "three-two-one".

counts in

（ present singular third-person ）

counting in

（ participle present ）

counted in

（ participle past ）

counted in

（ past ）