Say the wrong thing (3)
I believe the answer is:
lie
This might be a double definition.
'say' is the first definition.
The definition and answer can be both to do with communicating as well as being verbs in their base form.
Maybe you can see a link between them that I can't see?
'wrong thing' is the second definition.
The answer and definition can be both related to communication as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'the' is the link.
Can you help me to learn more?
(Other definitions for lie that I've seen before include "Stay hidden" , "situation" , "Whopper" , "Perjure" , "Fib in alienation" .)