Unless her name is Eve or Hannah, you might want to stick with Sis.
A palindrome for sister is probably the abbreviation "sis."
That would be SIS!
Sis
Sis
SIS
Sis Mom Mum
The palindrome for a distress call could be SOS.
"Nun."
a birds tweet in palindrome is peep
a palindrome...u chose the category didnt you?
An palindrome
refer
refer
level
peep
Madam
refer
A Palindrome.