mastectomy/maʹstektəmi/ noun (pl -ies) (pl mastectomies)

• outstrip
• outswing
• out-take
• out to lunch
• out tray
• outturn
• outvote
• outward
• Outward Bound
• outward-bound
• outwardly
• outwards
• outwear
• outweigh
• outwent
• outwit
• outwith
• outwore
• outwork
• outworn
• ouzel
• ouzo
• ov-
• ova
• oval