唯一不二

ゆいいつふじ

one and only, unique

唯一無比

ゆいいつむひ

one and only, unique

唯一

ゆいいつ ゆいつ

only, sole, unique

唯一度

ただいちど

only once

唯一神教

ゆいいつしんきょう

monotheism

史上唯一

しじょうゆいいつ

the first in history, only once in history

無二

むに

peerless, matchless

一二

いちに

the first and second, a few

遮二無二

しゃにむに

desperately, recklessly, rush headlong

無二無三

むにむさん むにむざん

in earnest, single-minded, with intense concentration, rushing headlong into

唯唯諾諾

いいだくだく

quite willingly, readily, with acquiescence

一二四

いちにし

four-of-a-kind and a pair in a dealt hand

二個一

にこいち ニコイチ

combining the working parts of two or more broken machines to make one functioning machine

無一物

むいちもつ むいちぶつ

being free of earthly attachments

無一文

むいちもん

penniless, broke

唯々

いい

quite willingly, readily, with acquiescence

唯識

ゆいしき

vijnapti-matrata (theory that all existence is subjective and nothing exists outside of the mind)

唯心

ゆいしん

spiritualism (in philosophy)

唯物

ゆいぶつ

materialism (in philosophy)