Meaning of “lay” - Learner’s Dictionary

lay

verb us uk /leɪ/ past tense and past participle laid
lay sth down/in/on, etc

C1 to put something down somewhere carefully:

She laid the baby on the bed.
He laid the tray down on the table.

More examples

[ T ] to put something into its correct position:

to lay a carpet
to lay bricks
lay eggs

B2 If an animal lays eggs, it produces them out of its body.

lay the blame on sb

to blame someone, usually when this is not fair:

You always lay the blame on me!

(Definition of “lay verb” from the Cambridge Learner’s Dictionary © Cambridge University Press)