How to Spell one
one
one - adjective
- Being a single unit or thing
- Being one in particular
- Being preeminently what is indicated
- Being the same in kind or quality
Source: Merriam-Webster Dictionary API
"one day at a time"
Etymology
Old English
Middle English on, an, from Old English ān; akin to Old High German ein one, Latin unus (Old Latin oinos), Sanskrit eka
Word family
ones, once