GeritolGer‧i‧tol /ˈdʒerɪtɒl $ -tɑːl/ trademark 
a type of patent medicine sold in the US which contains a lot of iron; it is usually taken by older people: 
the Geritol generation/set (=old people)
a type of patent medicine sold in the US which contains a lot of iron; it is usually taken by older people: the Geritol generation/set (=old people)- Free Church of Scotland
- free collective bargaining
- freedom
- freedom fighter
- Freedom of Information Act
- Freedom Tower
- free enterprise
- free fall
- free-falling
- free-floating
- Freefone
- underwent
- underwhelm
- underworld
- underwrite
- underwriter
- Underwriters' Laboratories
- undeserved
- undesirable
- undetected
- undeterred
- undeveloped
- undid
- undies
- undifferentiated