- [countable, usually singular] (usually the inside)the inner part, side or surface of something
- The inside of the box was blue.
- the insides of the windows
- The cake has a slight crust while the inside is soft and moist.
- PVC is used in dishwashers for lining the inside.
- from the inside The door was locked from the inside.
- on the inside The shell is smooth on the inside.
Definitions on the go
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- the inside[singular] the part of a road nearest the edge, that is used by slower vehicles
- on the inside He tried to overtake on the inside.
- the inside[singular] the part of a curved road or track nearest to the middle or shortest side of the curve
- on the inside The French runner is coming up fast on the inside.
- insides[plural] (informal) a person’s stomach and bowels
- She was so nervous, her insides were like jelly.
- He complained of a pain in his insides.
Word Originlate Middle English (denoting the interior of the body): from in + side.
Idioms
See inside in the Oxford Advanced American DictionarySee inside in the Oxford Learner's Dictionary of Academic Englishinside out
- with the part that is usually inside facing out
- You've got your sweater on inside out.
- Turn the bag inside out and let it dry.
know somebody/something inside out | know somebody/something like the back of your hand
- (informal) to be very familiar with somebody/something
- This is where I grew up. I know this area like the back of my hand.
on the inside
- belonging to a group or an organization and therefore able to get information that is not available to other people
- The thieves must have had someone on the inside helping them.
turn something inside out
- to make a place very untidy when you are searching for something
- The burglars had turned the house inside out.
- to cause large changes
- The new manager turned the old systems inside out.
Check pronunciation:
inside