ชัก(chák)

[to] pull; [to] draw (toward oneself/along)

To pull or draw something toward oneself or along a surface, often with a short or repeated motion.

[to] raise/lower (a flag, blinds)

To hoist or lower by pulling a rope or cord (e.g., a flag, blinds).

[aux] begin to; start to; keep on (repeatedly)

Auxiliary used before a verb to show the beginning of an action or a repeated/habitual action, often with a sense of suddenness or persistence.

[to] have convulsions; [to] twitch

To experience involuntary muscle contractions; to convulse or twitch (medical or figurative).

seizure; convulsion (episode)

An episode of convulsions or seizure (e.g., ‘เป็นชัก’).

[to] draw up (liquid) with a syringe; [to] inject

To draw liquid into a syringe or inject a substance, especially in medical or drug-use contexts.

[to] withdraw; [to] pull back

To take back or pull out (e.g., withdraw troops, pull back support) in formal or written Thai.