slip

1 slip /ˈslɪp/ verb
slips; slipped; slipping
1 slip
/ˈslɪp/
verb
slips; slipped; slipping
Britannica Dictionary definition of SLIP
1 
[no object] : to slide out of the proper position
2 
[no object] : to lose your balance especially on a slippery surface — often + on
3 
always followed by an adverb or preposition : to move easily across or over something
[no object]
[+ object]
4 
always followed by an adverb or preposition, [no object] : to move into or out of a place without being noticed
— see also slip away (below)
5 
always followed by an adverb or preposition, [no object] : to put on or take off a piece of clothing quickly or easily
6 
[+ object]
a  always followed by an adverb or preposition : to put or place (something) somewhere in a quiet or secret way
b  : to give (something) to someone in a quiet or secret way
7 
always followed by an adverb or preposition, [no object] : to happen or pass without being noticed by someone or something
8 
[no object]
a  : to go from one state or condition to another — often + into
b  : to move into a lower or worse state or condition
9 
[+ object]
a  : to escape (someone) : to get away from (someone)
b  : to get free from (something)
10 
[+ object] medical : to have (a part of your body) move out of its normal position especially in a joint

let (something) slip

or let slip (something)
: to say (something that you did not want to say) by mistake

slip away

[phrasal verb]
1 
: to pass out of existence
2 
: to leave a place without being noticed

slip out

[phrasal verb]
: to be said by mistake

slip through/between the cracks

— see 2crack

slip through the net

— see 1net

slip up

[phrasal verb] informal
: to make a mistake

slip your mind/memory

informal
: to be forgotten
2 slip /ˈslɪp/ noun
plural slips
2 slip
/ˈslɪp/
noun
plural slips
Britannica Dictionary definition of SLIP
[count]
1 
a  : a small piece of paper
b  : a piece of paper that has a specified use or purpose — see also pink slip, sales slip
2 
: a mistake
— see also a slip of the tongue (below), freudian slip
3 
: a movement to a lower or worse state or condition : decline — usually singular
4 
: the act of losing your balance and falling especially on a slippery surface — usually singular
5 
: a piece of woman's underwear that is like a thin dress or skirt and that is worn under a dress or skirt
— see color picture on this page
6 
: a place for a ship or boat in the water between two piers

a slip of the tongue

: something that is said by mistake

give (someone) the slip

informal
: to escape (someone) : to get away from (someone)
3 slip /ˈslɪp/ noun
3 slip
/ˈslɪp/
noun
Britannica Dictionary definition of SLIP
[singular] old-fashioned
: a young, thin person or animal — + of
4 slip /ˈslɪp/ noun
4 slip
/ˈslɪp/
noun
Britannica Dictionary definition of SLIP
[noncount] technical
: thin, wet clay that is used in pottery