It normally comes with two others, hips first (5)
I believe the answer is:
cheer
This clue could be a double definition.
'it normally comes with two others' is the first definition.
The definition suggests a singular noun which matches the answer.
'hips first' is the second definition.
The answer and definition can be both related to communication as well as being singular nouns.
Maybe you can see a link between them that I don't see?
Can you help me to learn more?
(Other definitions for cheer that I've seen before include "Inspirit" , "Shout applause and support" , "Applaud vocally, hurray etc" , "Fare" , "entertainment" .)