奶 [--]

Jyutping kap1 naai
Pinyin xī nǎi

Definitions (Wiktionary)
  1. verb, verb-object
    to suckle; to suck milk (from a breast, udder, feeding bottle, etc.)
  2. verb, verb-object
    to pump milk with a breast pump

吸奶 [--]

Jyutping
Pinyin xī nǎi

Definitions (CC-CEDICT)
  1. to suckle
  2. to pump breast milk with a breast pump
Examples (Wiktionary)
  1. Mandarin
    吸奶
    吸奶
    xī nǎi
    • to suckle; to suck milk