All by myself

adjective

1. Separated from others isolated

   "was alone in the office"

2. Exclusive of anyone or anything else only

   "She alone knows what happened."

3. Considered without reference to any other

   "The children alone would eat that much."

4. Incomparable, unique

   "They are alone among their contemporaries in this respect."

adverb

1. Solely, exclusively

   "The blame is mine alone."

2. Without aid or support

   "He said he could do it alone."

conjunction

1. To say nothing of not to mention

adjective

1. 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

   "Run on kerosene or diesel, stand-alone cabin heaters operate without electricity …"

2. Not being part of a larger work or series

   "a stand-alone film/novel"

3. Belonging to but operating independently of a larger organization

   "Nike built the Jordan Brand into a massive standalone business with $3.1 billion in wholesale revenue …"

4. Existing as a separate structure not connected to or contained within another structure

   "The gallery is in a standalone building on the property on Portland Street."

idiom

1. To do something by oneself

   "If no one's willing to help me, I guess I'll just have to go it alone."

idiom

1. To not try to make a situation better

   "I should have left/let well (enough) alone, but instead I tried to help and only made things worse."

idiom

1. To stop changing something that is already good enough

   "He just doesn't know when to leave well alone."

idiom

1. To stop changing something that is already good enough

   "He just doesn't know when to leave well enough alone."

idiom

1. To stop changing something that is already good enough

   "I never did learn to let well enough alone."

verb

1. To cause to remain as a trace or aftereffect

   "oil leaves a stain"

2. To cause or allow to be or remain in a specified condition

   "leave the door open"

3. To fail to include or take along

   "left the notes at home"

4. To have as a remainder

   "4 from 7 leaves 3"

5. To permit to be or remain subject to another's action or control

   "just leave everything to me"

6. Let
7. To cause or allow to be or remain available

   "leave room for expansion"

8. To go away from depart

   "leave the room"

9. Desert, abandon

   "left his wife"

10. To terminate association with withdraw from

    "left school before graduation"

11. To put, deposit, or deliver before or in the process of departing

    "I left a package for you"

12. Set out, depart

    "left for the office at eight sharp"