alone:1

adjective
alone \ ə-ˈlōn \
13th century{ds||1||}
  • separated from others : isolated
  • exclusive of anyone or anything else : only
  • considered without reference to any other

alone:2

adverb
alone \
13th century{ds||1||}
  • solely, exclusively
  • without aid or support

let alone

conjunction
let alone \
1765
  • to say nothing of : not to mention —used especially to emphasize the improbability of a contrasting example

stand-alone

adjective
stand-alone \ ˈstand-ə-ˈlōn \
1963
  • complete in itself : self-contained : such as
  • intended, designed, or able to be used or to function alone or separately : not connected to or requiring connection to something else in order to be used or to function; especially : operating or capable of operating independently of other software or hardware
  • not being part of a larger work or series

go it alone

idiom
go it alone \
  • to do something by oneself

leave/let well (enough) alone

idiom
leave/let well (enough) alone \
  • to not try to make a situation better

leave well alone

idiom
leave well alone \
  • to stop changing something that is already good enough

leave well enough alone

idiom
leave well enough alone \
  • to stop changing something that is already good enough

let well enough alone

idiom
let well enough alone \
  • to stop changing something that is already good enough

leave:1

verb
leave \ ˈlēv \
before 12th century{ds|t|1|a|1}
  • bequeath, devise
  • to have remaining after one's death
  • to cause to remain as a trace or aftereffect
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