achi

/ˈʔɐ.t͡ʃɪ/noun
RareNot in standard dictionaries
1

the eldest sister

2

an elder sister

3

a young female senior (usually within the Chinese Filipino community)

4

respectful term of address for the eldest sister

5

respectful term of address for an elder sister

6

respectful term of address for a young female senior (usually within the Chinese Filipino community)

#colloquial#informal