public enemy number one
(also public enemy no. 1) originally US
noun
The first person named on a list of wanted criminals; the person regarded as the one it is most important to apprehend; (in extended use) that which poses the greatest threat to the welfare or security of a community, nation, etc.
Origin
1930s; earliest use found in The Coshocton Tribune.
- off-worlder
- offy
- off year
- Ofgem
- of good cheer
- oficina
- of interest
- of its kind
- Oflag
- of late
- Oflot
- OFM
- of mark
- of necessity
- of no fixed abode
- of no fixed address (or abode)
- of note
- of old
- of one's choice
- of one's own
- of one's own accord
- of one's (own) making
- of (or by or on) one's own volition
- of (or for) a surety
- of (or from) the old school