張
チョウ, は.る, は.り, ば.り, はり, わり
lengthen, counter for bows & stringed instruments, stretch, spread, put up (tent)
JLPT1 G5 S11 F403
長# long + 弓 bow → *stretch* a bowstring → *spread*; *affix*. The many extended meanings include *tension*, *tautness*, *stiffness*, *will(power)*, *strain* (the nerves), *keep watch*, *exert influence*, *take/make a stand*, *put up/hang* (curtains/wallpaper etc.) and *lay* (flooring).
[Full Kanji Etymology List]