put on (to the feet), dig, pierce, drill
穿 centers on making an opening or forcing a way through: piercing, drilling, digging, or putting on footwear by pushing the foot through.
穿 combines 穴 (hole, cavity) and 牙 (tooth, tusk), suggesting the idea of piercing or boring through something with a tooth-like tool.
A tusk (牙) drills through a hole (穴): imagine a sharp tusk piercing a cavity to dig or drill through, or a foot pushing through a shoe opening.
For セン, picture a centipede (セン) using its many legs to dig and pierce through the ground: cent -> セン.
paracentesis; centesis; puncture; tap
perforation; punching; boring; drilling
to drill; to bore; to pierce; to pass through
card punch
card punch
spot punch
tape punch
tape punch
summary punch
to pierce a hole
to go into the minutest details
cardiocentesis
to dig up; to dig out; to pick (nose, teeth); to clean out (ears)
slow but steady wins the race; constant effort will result in success; constant dripping wears away a stone
to fail to make timely preparations; to not dig a well until one is thirsty
constant dripping wears away the stone; little strokes fell great oaks; limited strength, when persistently applied, can accomplish great feats
wearing next to the skin (e.g. shoes without socks, trousers without underwear)
showing unyielding diligence in one's studies; wearing a hole through one's metal inkstone from constant studying
to find someone's weak spot; to drill a hole
farfetched