keep a lid on

Verb

idiomatic imperative

(idiomatic, imperative) To keep something secret.

Japanese Meaning

秘密にしておく（物事を口外せず、内密に保つこと）

Keep a lid on this until we announce it to the public.

これを公に発表するまで秘密にしておいてください。

Sense（1）

(idiomatic, imperative) To keep something secret.

It's supposed to be a surprise, so try to keep a lid on it, will you?

keeps a lid on

（ present singular third-person ）

keeping a lid on

（ participle present ）

kept a lid on

（ participle past ）

kept a lid on

（ past ）