ไม่เพียง(mâi piiang)

not only (… but also)

used to introduce the first element in a ‘not only … but also’ structure (often with แต่แต่dtàe1but; however (contrast)2only; just (restriction)3from; since (starting point)4even; despite (emphatic concessive)/แต่ยังแต่ยังdtàe yangbut still; yet and/or เท่านั้นเท่านั้นtâo nán1only; just; no more than2that much/that many; to that extent3that’s all; period (sentence‑final))

not merely; not just

used to say something is not the only case, before adding more information or emphasis