-rae

Explanation

1. -rae
(informal addressee-lowering) An expression used to indirectly tell the listener something the speaker knows from having heard it.

2. -rae
(informal addressee-lowering) An expression used to ask about something the listener knows from having heard it.

3. -rae
(informal addressee-lowering) An expression used to convey another person's order, request, etc.

4. -rae
(informal addressee-lowering) An expression used to ask the listener about the order, request, etc., the listener knows from having heard it.