Jōyō kanji, Taught in grade 4
274 of 2500 most used kanji in newspapers
Stroke count: 12
Meaning: nothingness, none, ain't, nothing, nil, not
Kunyomi: な.い
Onyomi: ム, ブ
Composition: 丿 一 灬
Radical: 火
Reading: れっか
Meaning: fire
Strokes: 4
無料(むりょう) free of charge
無職(むしょく) unemployed
無理な(むりな) impossible
無神経な(むしんけいな) insensitive
無意味な(むいみな) nonsense
無視する(むしする) disregard, ignore
無事(ぶじ) safety
無難な(ぶなんな) secure, safe
無礼な(ぶれいな) rude
無くす(なくす) lose
無い(ない) no, not
無 (ム) nothing, naught, nought, nil, zero, un-, non-
無意識 (ムイシキ) unconsciousness, unconscious, involuntary, automatic, mechanical, unintentional, spontaneous, the unconscious
皆無 (カイム) nonexistent, nil, none, nothing (at all), bugger-all
虚無 (キョム) nihility, nothingness
無 (ブ) un-, non-, bad ..., poor ...
不気味 (ブキミ) weird, eerie, ominous, creepy, uncanny, unearthly
無い (ない) nonexistent, not being (there), unowned, not had, unpossessed, unique, not, impossible, won't happen, not, to not be, to have not
【ないといけない】 (have to (verb), must (verb), is indispensable, absolutely necessary)
苦無 (くない) ninja throwing knives, mediaeval farming tool for digging, prying, etc.