pleonasm

ple·o·nasm

n.

a. The use of more words than are required to express an idea; redundancy.
b. A superfluous word or phrase.

examples:

AC current
Alternating Current current

ATM machine
Automated Teller Machine machine

GMT time
Greenwich Mean Time time

HIV virus
Human Immunodeficiency Virus virus

LCD display
Liquid-Crystal Display display

PIN number
Private Identification Number number

attach together

circulated around

climb up

each and every

free gift

full satisfaction

good benefit

past experience

unexpected surprise

repeat again

last but not least...cuba try test ;p