外 outside

夕 (evening) +

(katakana toe)

★★★★★

5 strokes

Onyomi

GAI

Mnemonic

The GUY stuck his TOE outside of his pants in the evening.

Kunyomi

そと	outside ★★★★★
はず‘＊れ	to be literally apart from something (miss the target by 3 cm= 3cmはずれ)(the cloth was 3 cm over the limit, and stuck out of the arm-holes) (to be off the mark, out of line, etc.) ★★★☆☆
( が or に ) はず＊れる	to be cut off, to be outside. A door is off its hinges. A person is ostracized. Something is so incredible you can't even believe it. ★★☆☆☆

Jukugo

外人(がいじん)	foreigner ★★★★★ 外 (outside) + 人 (person) = 外人 (foreigner) foreigner (the more formal term is　外国人（がいこくじん）, but plain old 外人 is not neccesairly rude. It all depends on the tone)
xxx 以外(いがい)	other than xxx ★★★★☆ 以 (compared to) + 外 (outside) = 以外 (other than xxx) other than xxx / except for xxx.
例外(れいがい)	exception ★★★☆☆ 例 (example) + 外 (outside) = 例外 (exception) an exception to a rule
案外(あんがい) に or な	more than one expected ★★☆☆☆ 案 (guide/proposal) + 外 (outside) = 案外 (more than one expected) more/less/weirder than you expected.
季節外れ(きせつはずれ) の	out of season. ☆☆☆☆☆ 季 (season) + 節 (season / joint) + 外 (outside) = 季節外れ (out of season.)

Synonyms

appearance
容姿外見見た目外観容貌

border, edge
国境境境界縁端末先外れ際

outside
外屋外

remove
抜く外す排除除外

solitude, alienation
疎外感孤独疎遠

unexpected, chance, coincidence
偶然意外案外