หนึ่งแก้ว

one glass

→ หนึ่ง
phrase Rare #12,828
one glass Used to specify one serving of a drink; แก้ว is the classifier for glasses or cups of beverages, so the translation may be “one cup” depending on the container.
TH: ขอน้ำหนึ่งแก้วได้ไหม?
EN: Could I have one glass of water?