Dictionary: “一”

one lump;one body;one group

(one) matter;(one) item;(one) case

example;an instance

only daughter

(what) the heck;(why) in the world;(who) on earth

multiplying by one;original amount

generation;lifetime

one tenth;one hundredth;one percent;one tenth of a sun;one quarter ryō (an old coin)

one full year

all;everything;entirety;the whole

person to be reckoned with;person of importance

one-by-one;separately;in detail

one party;one faction;one clique

each (person);individually;one by one;one at a time;in turn

a help;an aid;some assistance

one vehicle

mouthful;morsel;bite

one portion;one serving;one person

one round;one turn;a circuit (of)

one leaf (of a book bound in Japanese style)

item;article

first place;first rank

one person;one member

one

completely;absolutely;totally

(an) only child

a moment;a minute;an instant

one cause;one reason;one factor

unification;centralization;centralisation

body;group;party;gang;troupe;troop

the first and second;a few

generation;lifetime;age

one person

one country

alternating between happiness and anxiety;swinging between joy and sorrow;being glad and sad by turns;oscillating between optimism and pessimism

one yen

once;one time;one round;one game;one bout;one heat;one inning

one (thing);one piece;one item

unitary

entrusting (everything to);leaving (a matter) entirely with

one building (hall, temple, shrine, room)

only son

living by oneself;living alone

complete change;about-face

first base

one question

one round;one circuit;one revolution;one lap;one turn

all present;all concerned;all of us

100,000,000;one hundred million