penguin¹ /pen(g)ˈgwin/

1. (also pinˈguin) any bird of the order Sphenisciformes, flightless seabirds of the southern hemisphere with modified flipper-like wings used for swimming, and black or bluish plumage except for the mainly white breast
2. A former name for the great auk
3. A training aeroplane that cannot fly (slang)
4. A member of the Women's Royal Air Force, ‘flappers who did not fly’ (old slang)

• symmetrophobia
• symmetrophobias
• symmetry
• sympathectomies
• sympathectomy
• sympathetic
• sympathetical
• sympathetically
• sympathetic ink
• sympathetic magic
• sympathetic nervous system
• sympathetic nervous systems
• sympathetic strike
• sympathetic strikes
• sympathetic string
• sympathetic strings
• sympathies
• sympathin
• sympathins
• sympathique
• sympathise
• sympathised
• sympathiser
• sympathisers
• sympathises