Making a word out of the first letter of words?

Answer 1

That's called an acronym. Some examples are:

• SNAFU for Situation normal, all fouled up.
• POSSLQ (pronounced posselque) for Person of Opposite Sex Sharing Living Quarters
• And any number of government and military terms; NASA for National Aeronautical and Space Administration or SAM for Surface to Air Missile or even GI which is used to refer to a person but stands for Government Issue.

Answer 2

Sorry i don`t understand something like this maybe!::::: Rrainbow,rebecca,ray,rhino,rhinoceros,red,room,right,rehab, and rhombus!! Hope that's ok!!!!!!!!!