My bill! (3)
I believe the answer is:
coo
This might be a double definition.
'my' is the first definition.
(I've seen this before)
'bill' is the second definition.
The definition and answer can be both to do with communicating as well as being verbs in their base form.
Perhaps they are linked in a way I don't understand?
Can you help me to learn more?
(Other definitions for coo that I've seen before include "Sound made by dove" , "I'm surprised" , "Pigeon's sound" , "Cry of doves - cry of surprise?" , "(Of pigeon) murmur" .)