孤 - orphan, alone

solitary island; isolated island

orphan

isolation; being alone; being friendless

solitude; loneliness; isolation

orphanage

lone traveller; lone traveler

war orphan

profound loneliness; deep loneliness

language isolate

only extant copy; only existing copy

isolated tile; lone honor tile, or a suited tile separated by two or more ranks from other complete or incomplete melds

lone (isolated) force; forlorn force