孤

isolation

orphan

solitude

orphanage

solitary island

aloof

fighting alone

only extant copy

isolation

One Hundred Years of Solitude (1967 novel by Gabriel García Márquez)

dying alone (esp. of someone who lives alone and dies of natural causes at home without anyone knowing)

isolation

dying alone (esp. of someone who lives alone and dies of natural causes at home without anyone knowing)

language isolate

lone (isolated) force

isolationism

isolating language

state of isolation

orphan works

sense of isolation

lone pair (of electrons)

isolated and helpless

feeling (looking) lone and helpless

feeling apprehensive

lone traveller

isolated place

lonely figure

Japanese orphans left behind in China (after WWII)

orphan works

isolated stronghold

solitary castle

war orphan

orphan

isolate

displaced orphans

being alone

a person without a single relative

being isolated

young orphan

the virtuous man will not long remain lonely

sole sword

stubborn and aloof

isolated tile

solitary light

alone and dejected

solitary sailboat

solitary boat

lone monkey

one cannot live solely by oneself

Sparganum proliferum (species of worm)

profound loneliness

solitary wild goose (i.e. separated from its flock, esp. flying)

with no one upon whom to depend