シン, もう.す, もう.し, さる
have the honor to, sign of the monkey, 3-5PM, ninth sign of Chinese zodiac
JLPT3 G3 S5 F492
The relevant oracle bone form of this character shows a bolt of lightning stretching from sky to earth. A seal inscription form, however, is a pair of hands + a straight line representing a rope → pair of hands tugging on/stretching a rope. *Say* is a borrowed meaning, as are *monkey* (as the *ninth sign of the Chinese zodiac*) and *3 P.M. to 5 P.M.*.
[Full Kanji Etymology List]