技 (Kanji for technique)

Onyomi

GI	GEESE have a technique to find their way back home every summer.

He got such crazy martial arts techniques, his hands are all the support he needs - no guns, knives, whatever.

わざ	a style or technique (usually used about martial arts, skateboard moves, or rappers, moreso than artisans or factory manufacturing) ★★★☆☆

技術(ぎじゅつ)

technique ★★★★☆
技 (technique) + 術 (art / technique) = 技術 (technique)

technique - used mostly with industry or artisans.

特技(とくぎ)

one's specialty ★★★☆☆
特 (special) + 技 (technique) = 特技 (one's specialty)

	Meaning	Hint	Radical
技	technique	HAND	手
枝	branch	TREE	木

Kung-fu gots techniques where you use your HANDS,

but a TREE has something called a branch.