ONE

(SINGLE) [determiner], [pronoun] - not two or moreDo you think five of us will manage to squeeze into the one car?There's too much data to fit onto just the one disk. We'll need at least two.Don't gobble them up all at once. Eat them one at a time (= separately).I think we should paint the bedroom all one (= in a single) colour.One by one (= Separately and gradually) the old buildings in the city have been demolished and replaced with modern tower blocks.