one word; a single word
Refers to a single lexical unit. Often used in contexts like 'explain in one word' or 'not a single word of complaint'.
It's hard to express that feeling in a single word.
He didn't utter a single word.
一語 means literally 'one word' as a linguistic unit, whereas 一言 means a brief remark or comment, not necessarily a single lexical word.
Standard kanji spelling.
Numerical variant, often used in lists or technical contexts.
Compound of 一 (いち, 'one') and 語 (ご, 'word').