keep a lid on
To keep something secret.
It's supposed to be a surprise, so try to keep a lid on it, will you?
ADJ
airtight, close-fitting, sealed, tight-fitting, tight
The jar had a sealed lid, so the cookies stayed fresh for weeks.
hinged | box, case, coffin, dustbin, piano, saucepan, etc.
VERB + LID
lift, open, prise off, raise, remove, take off
He carefully removed the lid from the pot to check if the soup was ready.
close, put down, put on, replace, screw down, screw on, shut
She closed the lid of the wooden box carefully before placing it on the shelf.
keep on
She kept the lid on her emotions during the difficult meeting at work.
PREP
on the ~
The expiration date on the lid helps you know when the yogurt expires.
ADJ
closed, drooping, half-closed, half-open, heavy, hooded, lowered, narrowed
His heavy lids drooped as he struggled to stay awake during the long lecture.
VERB + LID
close, lower
He closed his lids tightly to block out the bright sunlight streaming through the window.
lift, open
When the child opened her lid on the treasure box, her eyes grew wide with excitement.
LID + VERB
droop
Her tired lids drooped as she struggled to stay awake during the long meeting.
PREP
behind ~
When I close my eyes, I can still see colors swirling behind my lids.
beneath ~
The child peeked at the surprise party from beneath heavy eyelids as she woke up.
through ~
She peeked through her heavy lids as she woke up slowly this morning.