内

meanwhile; in the meantime

Familiar; Orig. honorific

missus; missis

inside pocket

our company

mole; whistle-blower; informant; betrayer

adulterer; adulteress

Nouns which may take the genitive case particle 'no'

family circle; one's circle (of friends, co-workers, etc.); one's fellows; in-group

Nouns which may take the genitive case particle 'no'

private matters; internal affairs

Adjectival nouns or quasi-adjectives (keiyodoshi); Nouns which may take the genitive case particle 'no'

conservative (e.g. estimate); moderate

pigeon toe (walking); in-toeing

inside the kindergarten

inside the zoo

inside the garden; inside the park

emperor's secret orders

inside a plane; in-flight

internal medicine

department of internal medicine

inner thigh; inside of the thigh

(walking) pigeon-toed; having one's toes turned inward

Martial arts

uchi-mata (judo); throwing an opponent by putting one's leg between their legs

itemization (of expenses); the items; breakdown; classification

inside and outside the country; domestic and foreign

in the mountains; within the grounds of a temple

the staff; inside the department

side job (outside of one's main employment); side gig; side hustle

homeworking; simple job carried out at home; home industry

Colloquial

(secretly) working on something unrelated to the class (or conference, etc.) one is attending

inside the House; inside the Diet

inside the hospital

within the borders of a country; domestic soil

inland; interior

Historical term

Japan proper (as opposed to its overseas colonies); homeland; home

Used by people in Hokkaido and Okinawa

"mainland" Japan (i.e. Honshū)

secret communication (with the enemy); collusion; betrayal

adultery; (extramarital) affair

within the family; in the home; domestic

inland

neighborhood association; neighbourhood association

the facts; the truth; the true state of affairs

Adverb (fukushi)

in truth; in fact; in reality; actually

information board; building directory