noun, na-adjective
solitude; loneliness; being alone
Describes the state of being alone, often with a nuance of loneliness or isolation. Can be used as a noun or adjectivally with な.
noun
Rare standalone use; more commonly seen in compounds like 孤児 (こじ). This sense is marked as rare.
See also: 孤児
「孤」は「孤児」の孤と同じ字だ。
The 孤 in 孤児 is the same character as in 'orphan'.