Five examples of tautology I keep hearing...

Tautology is the needless repetition of an idea, especially in words, as in “widow woman."

1. "Free gift" - aren't all gifts free?
2. "PIN number" - the "N" stands for number.
3. "The two twins" - does that make four?
4. "ATM machine" - learn what everyday acronyms stand for.
5. "Repeat it again"- both the definition and the crime of tautology.