Definify.com
Webster 1913 Edition
Alone
1.
Quite by one’s self; apart from, or exclusive of, others; single; solitary; – applied to a person or thing.
Alone
on a wide, wide sea. Coleridge.
It is not good that the man should be
alone
. Gen. ii. 18.
2.
Of or by itself; by themselves; without any thing more or any one else; without a sharer; only.
Man shall not live by bread
alone
. Luke iv. 4.
The citizens
alone
should be at the expense. Franklin.
3.
Sole; only; exclusive.
[R.]
God, by whose
alone
power and conversation we all live, and move, and have our being. Bentley.
4.
Hence; Unique; rare; matchless.
Shak.
☞ The adjective alone commonly follows its noun.
To let alone
or To leave alone
to abstain from interfering with or molesting; to suffer to remain in its present state.
A-lone′
,adv.
Solely; simply; exclusively.
Webster 1828 Edition
Alone
ALO'NE
,Adj.
1.
Single; solitary; without the presence of another; applied to a person or thing.It is not good that man should be alone. Gen. 2.
[This adjective follows its noun.]
2.
It is applied to two or more persons or things, when separate from others, in a place or condition by themselves; without company.And when they were alone, he expounded all things to his disciples. Mark 4.
3.
Only.Thou whose name alone is Jehovah. Ps. 83.
This sense at first appears to be adverbial, but really is not; whose name single, solitary, without another, is Jehovah.
To let alone is to suffer to rest; to forbear molesting or meddling with; to suffer to remain in its present state. Alone, in this phrase, is an adjective, the word to which it refers being omitted; let me alone; let them alone; let it alone; that is, suffer it to be unmolested, or to remain as it is, or let it remain by itself.
ALO'NE
,adv.