What do you call this one

- What do you call one sided love
- What do you call one year death anniversary
- What do you call one parentheses
- What do you call one grape
- What do you call one floor house
- What do you call a one eyed dinosaur
- What do you call one version or form of a trait
- What do you call one dice
- What do you call one direction fans
- What do you call one sheep
- What do you call one thousand years
- What do you call ones tens hundreds
- What do you call one eye glass
- What do you call one month anniversary
- What do you call one hundred years