lay

1 lay /ˈleɪ/ verb
lays; laid /ˈleɪd/ ; laying
1 lay
/ˈleɪ/
verb
lays; laid /ˈleɪd/ ; laying
Britannica Dictionary definition of LAY
1 
[+ object] : to place (someone or something) down gently in a flat position
— often + down
— see also lay down (below)
2 
[+ object]
a  : to place (something) into position on or along a surface : to build or set (something) on or in the ground or another surface
— often + down — often used figuratively
b  chiefly US : to spread (something) over a surface
4 
[no object] informal : to be in a flat position on a surface : lie
◊ The use of lay to mean “lie” occurs commonly in informal speech but it is regarded as an error by many people.
5 
[+ object]
a  : to beat or strike (something) down with force
b  : to change the condition of something in a specified way
6 
of a bird, insect, etc. : to produce (an egg) outside of the body : to push (an egg) out of the body
[+ object]
[no object]
— see also lay an egg at 1egg
7 
[+ object] — used like make, place, or put in various phrases
8 
[+ object] : to make (something) ready : to prepare (something)
9 
[+ object] informal : to risk losing (money) if your guess about what will happen is wrong : bet
10 
[+ object] informal + offensive : to have sex with someone — usually used in the phrase get laid

lay aside

[phrasal verb]
1 
lay (something) aside or lay aside (something)
: to place (something) to one side
— often used figuratively
2 
: to keep (something) for special or future use : to reserve or save (something)

lay by

[phrasal verb]
lay (something) by or lay by (something)
: to keep (something) for special or future use

lay charges

British
: to accuse someone officially of doing something illegal

lay claim to

— see 2claim

lay down

[phrasal verb]
1 
lay (something) down or lay down (something)
a  : to clearly state (a rule, standard, guideline, etc.)
b  : to stop using (something)
2 
lay (a weapon) down or lay down (a weapon) : to put (a weapon) down and stop fighting
3 
lay down your life formal : to give up your life for a good purpose : to die for a good cause
4 
lay down the law : to make a strong statement about what someone is or is not allowed to do
— see also 1lay 1 (above)

lay eyes on

— see 1eye

lay hold of

— see 2hold

lay in

[phrasal verb]
lay (something) in or lay in (something)
: to get and store (a supply of something) for future use

lay into

[phrasal verb]
lay into (someone or something) informal
: to angrily attack or criticize (someone or something)

lay it on the line

— see 1line

lay off

[phrasal verb]
1 
lay (someone) off or lay off (someone) : to stop employing (someone) because there is not enough work
— see also layoff
2 
lay off (something) informal : to stop doing, using, eating, or drinking (something)
3 
lay off or lay off (someone) informal : to leave someone alone : to stop annoying someone

lay on

[phrasal verb]
1 
lay (something) on or lay on (something)
a  : to spread (something) over a surface — often used figuratively
b  British : to provide (something) for someone
2 
lay it on (thick) informal : to speak in a way that is exaggerated and not sincere

lay out

[phrasal verb]
1 
lay (something) out or lay out (something)
a  : to place (something) on a surface in a carefully arranged way
b  : to arrange (something) in a particular pattern or design
— see also layout
c  : to plan the details of (something)
d  : to explain the details of (something)
e  informal : to spend (money)
— see also outlay
2 
lay (someone's body) out or lay out (someone's body) : to prepare (someone's dead body) so that it can be seen by family and friends before it is buried
3 
lay (someone) out or lay out (someone) informal : to make (someone) unconscious : to knock (someone) out

lay over

[phrasal verb] US
1 
: to make a stop in the middle of a journey
2 
lay (someone) over : to cause (someone) to stop in the middle of a journey — usually used as (be) laid over — see also layover

lay siege to

— see siege

lay (someone) to rest

— see 2rest

lay to rest (something)

or lay (something) to rest
— see 2rest

lay up

[phrasal verb]
1 
lay (something) up or lay up (something)
a  old-fashioned : to store (something)
b  : to take (something) out of active use or service
2 
lay (someone) up or lay up (someone) : to cause (someone) to stay at home or in bed because of illness or injury — usually used as (be) laid up

lay waste to

: to cause very bad damage to (something)

lay your hands on

— see 1hand

the goose that lays the golden egg

— see 1goose
2 lay /ˈleɪ/ noun
plural lays
2 lay
/ˈleɪ/
noun
plural lays
Britannica Dictionary definition of LAY
[count] informal + offensive
: a person who is being described as a sexual partner
— see also lay of the land
3 lay
3 lay
Britannica Dictionary definition of LAY
past tense of 1lie
4 lay /ˈleɪ/ adjective
4 lay
/ˈleɪ/
adjective
Britannica Dictionary definition of LAY
always used before a noun
1 
: not trained in a certain profession : not having a lot of knowledge about a certain thing
2 
: belonging to a religion but not officially a priest, minister, etc.