fleck¹/flek/ noun

fleck²verb trans

• on/hot on the heels of
• on ice
• on/in heat
• onion
• onionskin
• on its merits
• on-line
• on loan
• onlooker
• only
• only too
• on-message
• on no account/not on any account
• o.n.o.
• on occasion
• on-off
• on/off duty
• on offer
• on/off somebody's case
• on/off stream
• on/off target
• onomastic
• onomastics
• onomatopoeia
• Onondaga