Pronunciation: [kˈiːp lˈɪd ˈɒn] (IPA) 
The phrase "keep lid on" means to maintain control over a situation or to keep something secret. It is spelled phonetically in IPA as /kiːp lɪd ɒn/. The "k" sound is followed by a "ee" sound as in "bee". The "p" is pronounced with a puff of air, and the "l" sound is soft. The word "lid" is spelled with an "i" and a short "i" sound as in "kid". The final "on" sound is pronounced with a long "o" as in "stone".
"Keep lid on" is a colloquial expression that means to maintain control over a situation, to prevent it from escalating, or to keep it secret or hidden. This phrase is derived from the literal action of ensuring a lid remains firmly in place to prevent the contents of a container from spilling or escaping. It suggests the need for caution and vigilance in order to contain or suppress a potentially disruptive or sensitive matter.
In a figurative sense, "keeping a lid on" implies the act of exerting authority, discipline, or restraint to manage a situation. It involves maintaining order, preventing chaos, or preventing a situation from worsening. For example, in a heated argument, someone might be advised to "keep a lid on" their emotions to avoid escalating the conflict.
Furthermore, "keep lid on" can also mean to maintain confidentiality or secrecy. It suggests the need to safeguard sensitive or confidential information from becoming known or publicized. Employers may ask employees to "keep a lid on" certain details about a project until it is officially announced to the public.
Overall, "keep a lid on" signifies the act of controlling, managing, and withholding, be it emotions, information, or potential disruptions, in order to maintain order, prevent escalation, or ensure confidentiality.
