tease, prank, trick, practical joke, mischief / playing with (a lighter, for example), tampering with, fooling around with, messing around with / hobby, pastime / action that is a considered a misc...

弾性: elasticity / 男性: a man, a male person / 男生: a male student / 男声: a male voice

a surname

経緯縮緬: georgette