塞 (sāi) means “to stop up”. The 塞 stroke order has 13 strokes; the animation above shows them one at a time. Its radical is 土. To practise how to write 塞, open writing practice; to hear how to pronounce 塞, use the pronunciation trainer.
Words with 塞
塞 — sāi, to stop up; to squeeze in; to stuff; cork; stopper
堵塞 — dǔ sè, to clog up; blockage
闭塞 — bì sè, to stop up; to close up; hard to get to; out of the way; inaccessible; unenlightened; blocking