- at, in, or to the adjacent house, flat, building, etc
WordReference Random House Learner's Dictionary of American English © 2026
next-door /adv. ˈnɛksˈdɔr, ˈnɛkst-; adj. -ˌdɔr/USA pronunciation
adv.
adj. [before a noun]
WordReference Random House Learner's Dictionary of American English © 2026- Also, ˈnext ˈdoor. to, at, or in the next house, building, apartment, etc.:They live next door.
adj. [before a noun]
- located or living in the next house, building, apartment, etc.:next-door neighbors.
door /dɔr/USA pronunciation
n. [countable]
WordReference Random House Unabridged Dictionary of American English © 2026- Architecturea movable barrier of wood, glass, or metal for opening and closing an entranceway, cupboard, cabinet, or the like, usually turning on hinges or sliding in grooves:He knocked on the door.
- a doorway:He stood at the door, but she wouldn't let him in.
- a building, house, apartment, or the like as represented by its entrance:He lived two doors up the street.
- any means of gaining something, or a way of getting to something;
access;
key:the door to learning.
- Idioms answer the door, to go to the main door of one's living place and ask to know who has knocked, or to open it.
- at death's door, near death;
dying. - Idioms next door, at the house, building, or apartment next to the one already known or spoken about:He fell in love with the girl next door.
- Idioms show someone the door, to order someone to leave:The bodyguard politely but firmly showed me the door.
next-door
(adv. neks′dôr′, -dōr′, nekst′-;adj. neks′-dôr′, -dōr′, nekst′-),USA pronunciation adv.
adj.
WordReference Random House Unabridged Dictionary of American English © 2026- Also, next′ door′. to, at, or in the next house on the street, esp. if it is very close by, or the adjacent apartment, office, room, or the like:Go next-door and get your sister. Your sister is next-door. Her brother lives next-door.
adj.
- being situated or living next-door:next-door neighbors.
- 1475–85
door
(dôr, dōr),USA pronunciation n.
door′less, adj.
- Architecturea movable, usually solid, barrier for opening and closing an entranceway, cupboard, cabinet, or the like, commonly turning on hinges or sliding in grooves.
- a doorway:to go through the door.
- the building, house, etc., to which a door belongs:My friend lives two doors down the street.
- any means of approach, admittance, or access:the doors to learning.
- any gateway marking an entrance or exit from one place or state to another:at heaven's door.
- Idioms lay at someone's door, to hold someone accountable for;
blame;
impute. - Idioms leave the door open, to allow the possibility of accommodation or change;
be open to reconsideration:The boss rejected our idea but left the door open for discussing it again next year. - Idioms lie at someone's door, to be the responsibility of;
be imputable to:One's mistakes often lie at one's own door. - Idioms show someone the door, to request or order someone to leave;
dismiss:She resented his remark and showed him the door.
- bef. 900; Middle English dore, Old English duru door, dor gate; akin to German Tür, Old Norse dyrr, Greek thýra, Latin foris, Old Irish dorus, Old Church Slavonic dvĭrĭ
Collins Concise English Dictionary © HarperCollins Publishers::
next-door, nextdoor /ˌnekstˈdɔː/ adj , adv
'next door' also found in these entries (note: many are not synonyms or translations):