outside

1 outside /ˌaʊtˈsaɪd/ /ˈaʊtˌsaɪd/ noun
plural outsides
1 outside
/ˌaʊtˈsaɪd/ /ˈaʊtˌsaɪd/
noun
plural outsides
Britannica Dictionary definition of OUTSIDE
1 
the outside : an area around or near something (such as a building)
2 
[count] : an outer side, edge, or surface of something — usually singular — often + of

at the outside

: at the most : at the greatest amount or limit

on the outside

1 
: on the outer side, edge, or surface of something
2 
baseball : on the side of home plate farthest from the batter
3 
— used to describe someone's appearance
4 
: not in prison
2 outside /ˌaʊtˈsaɪd/ /ˈaʊtˌsaɪd/ adjective
2 outside
/ˌaʊtˈsaɪd/ /ˈaʊtˌsaɪd/
adjective
Britannica Dictionary definition of OUTSIDE
1 
: located on or near an outer side, edge, or surface of something
2 
always used before a noun
a  : located in or near the area around a building and not inside it
b  : involving people who are not in the same building, group, or organization as you
— see also outside world at 1world
3 
always used before a noun : not involving your regular job or duties
4 
always used before a noun : barely possible : very unlikely
3 outside /ˌaʊtˈsaɪd/ /ˈaʊtˌsaɪd/ adverb
3 outside
/ˌaʊtˈsaɪd/ /ˈaʊtˌsaɪd/
adverb
Britannica Dictionary definition of OUTSIDE
1 
a  : in or to a place that is near but separate from another place
b  : in or to a place that is in the area around or near a building and not inside it : outdoors
2 
: on the outer side, edge, or surface of something
4 outside /ˌaʊtˈsaɪd/ /ˈaʊtˌsaɪd/ preposition
4 outside
/ˌaʊtˈsaɪd/ /ˈaʊtˌsaɪd/
preposition
Britannica Dictionary definition of OUTSIDE
1 
: in a place that is near but separate from (something)
2 
: beyond the limits or borders of (something)
3 
: not belonging to (a group or organization)
4 
: apart from (someone or something) : except, besides

outside of

chiefly US
: outside

think outside the box

— see 1box