Used for either member of a very close pair; also for a lovebird.
Definitionen
One of two people who are very close companions and are rarely seen apart. At university, Jake and Ryan were inseparables, always studying together.
A small African parrot of the lovebird group, typically kept in closely bonded pairs. The pet shop displayed a cage full of brightly coloured inseparables.
Synonyme
bosom friend
close friend
constant companion
best friend