Kanji info: 機密解除 — 和英／英和辞典

機

loom, mechanism, machine, airplane, opportunity, potency, efficacy, occasion

On'yomi: キ (ki)

Kun'yomi: はた (hata)

Radical components: ノ丶幺戈木

Stroke order

密

secrecy, density (pop), minuteness, carefulness

On'yomi: ミツ (mitsu)

Kun'yomi: ひそ.か (hiso.ka)

Radical components: ノ丶宀山心

Stroke order

解

unravel, notes, key, explanation, understanding, untie, undo, solve, answer, cancel, absolve, explain, minute

On'yomi: カイ (kai)、ゲ (ge)

Kun'yomi: と.く (to.ku)、と.かす (to.kasu)、と.ける (to.keru)、ほど.く (hodo.ku)、ほぐ.す (hogu.su)、わか.る (waka.ru)、さと.る (sato.ru)

Radical components: 刀牛角

Stroke order

除

exclude, division (x/3), remove, abolish, cancel, except

On'yomi: ジョ (jo)、ジ (ji)

Kun'yomi: のぞ.く (nozo.ku)、 -よ.け (-yo.ke)

Radical components: 一个示阡

Stroke order