O Dictionary
One person, one vote rule
One person, one vote rule, means the principal that the Equal Protection Clause requires legislative voting districts to have about the same population, Reynolds v. Sims, 377 US 533: 84 S Ct 1362 (1964)....
one seventh
a seventh part...
One sided
Having one side only or one side prominent...
one sixth
a sixth part...
one step
an early ballroom dance precursor to the foxtrot...
one tenth
a tenth part...
one third
one of three equal parts of a divisible whole...
one up
Ahead of a friend or competitor in some competitive activity...
one upmanship
The attitude or practice of trying to keep one step ahead of a friend or competitor vigorous competitiveness...
one way
Legally permitting movement or travel in one direction only of paths especially roads as one way streets...