Meaning of wèi:
喂
variant of 餵|喂[wei4]; hello (when answering the phone); hey
Lǎobǎn, jìdé wèi māo.
老板,记得喂猫。
Boss, remember to feed the cat.
Diànhuà xiǎngle, wǒ ná qǐ shǒujī shuō: “Wéi?”
电话响了,我拿起手机说:“喂?”
The phone rang, and I picked up my mobile and said, 'Hello?'
Wèi, nǐ hǎo ma?
喂,你好吗?
Hey, how are you?
to feed; to feed (an animal, baby, invalid etc)
Tā měitiān zǎoshang dūhuì wèi xiǎo māo.
她每天早上都会喂小猫。
She feeds the kitten every morning.
Tā zhèngzài gěi māo wèi shí.
她正在给猫喂食。
She is feeding the cat.