初

one's first campaign; one's first battle

one's original intention; one's initial enthusiasm

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

inexperience; naivety; greenness

elementary; basic; rudimentary

first shrine visit of the New Year

Auxiliary verb

to begin to

basics; rudiments; elements; ABCs of ...

bridal night; first night

first watch of the night

Noun or verb acting prenominally

elementary; primary

beginning (of a century, etc.)

at first; initially; in the beginning

first day returning to work after the New Years holiday

first task at a new job; newcomer's first job

initial response (e.g. to a crisis); action in the earliest stages

initial shock (of an earthquake); preliminary tremor

Colloquial

(very) beginning; start

first snow (of the season); first snowfall

first edition

early spring; beginning of spring

first month of the lunar calendar

Computing

initialization (of a variable); initialisation

Computing

formatting (a disk); initialization

Computing

initialization (of a device); (factory) reset

Biochemistry

reprogramming

first 10 days of the month

early autumn (fall)

しょしゅう only; Obsolete term

seventh month of the lunar calendar

early winter

Obsolete term

tenth month of the lunar calendar

Physics

initial velocity

first appearance

default settings; initial settings; initial configuration

Noun or participle which takes the aux. verb suru

initialization; initialisation

debut; first appearance