(num) (1) one; (n) (2) for one thing (often used in itemized lists); (3) (after a noun) only; (4) (with a verb in negative form) (not) even; (n-adv) (5) just (i.e. "just try it"); (P)[edict]
หนึ่งชิ้น/อย่าง[longdojp]
だけ
(conj) however; (P)[edict]
(exp) (id) (...だけは) at least ...; at least not (when followed by a negative)[edict]