tūn
verb HSK 6 #3,272

Meanings

  1. 1 to swallow; to gulp down
  2. 2 to annex; to engulf; to take over

Examples

Tā bǎ yàopiàn tūn xiàqù le.
He swallowed the pill.
Bié tūn nàme kuài, xiǎoxīn yē zhe.
Don't swallow so fast; be careful not to choke.
Dàyú tūn xiǎo yú.
Big fish swallow small fish.

Tips

usage
is for swallowing whole, without chewing. 吞吞吐吐 (tūntūntǔtǔ) = to hesitate in speech (literally 'swallowing and spitting'), meaning to be evasive or mumbling.
memory
The character has (mouth) at the top and (heaven/sky) at the bottom — as if the mouth is swallowing the sky. Think big gulp.

Components

radical
kǒu
mouth
Mouth radical at the bottom — the indexing radical. It supplies meaning unmistakably: is something the mouth swallows down whole, without chewing. Same radical heads the broader eating/sound family. The vivid pair 吞云吐雾 ('swallow clouds, breathe out mist') captures the imagery — vast intake through the mouth.
phonetic
tiān
sky; heaven
(tiān) on top supplies the sound, drifting initial to give tūn. The image — sky/heaven looming over a mouth — gives a faint mnemonic flavour for 'swallowing whole, taking it all in.' Same phonetic stem feeds (add). Chiefly sonic, with meaning delivered by the mouth below.

Stroke Order

tūn