- She raised her daughter by herself.
- She was sitting at a table by herself.
- By herself she could jump over fences and ditches better than her brothers.
- Ellie McGlynn was there, standing by herself on the front porch.
- He sidled into her mind, usually when she was by herself but not always; he wasn't shy.
- It was so tragic that the girl should be going through all this by herself.
- Minna had gone away quietly all by herself, probably to meet Zbigniew Shapira at a Danzig hotel.
- She wanted to be by herself, where there were no lights.
- She was too weak to get out of bed by herself, but she might be calling Lester to help her.
- She wouldn't have to deal with Anna by herself.
herselfher‧self /əˈself, hə-; strong hɜː- $ ər-, hər- strong hɜːr-/ ●●● S2 W1 pronoun [reflexive form of ‘she’] 
1used to show that the woman or girl who does something is affected by her own action: 
She cut herself on some broken glass. She made herself a cup of coffee.2 a)used to emphasize that you are talking about one particular woman or girl: It must be true that she’s leaving because she told me so herself. The ornate Town Hall was opened by Queen Victoria herself. b)used after ‘like’, ‘as’, or ‘except’ instead of ‘her’: She met other mothers in the same situation as herself.3(all) by herself a)alone: Miss Bennet lives by herself. b)without help from anyone else: The little girl wrote the letter all by herself.4 not be/feel/seem herself informal if a woman or girl is not herself, she does not feel or behave as she usually does, for example because she is upset or ill: You must forgive her – she’s not herself at present.5 have something (all) to herself if a woman or girl has something to herself, she does not have to share it with anyone else: Alice had the house to herself while her parents were away.
1used to show that the woman or girl who does something is affected by her own action: She cut herself on some broken glass. She made herself a cup of coffee.2 a)used to emphasize that you are talking about one particular woman or girl: It must be true that she’s leaving because she told me so herself. The ornate Town Hall was opened by Queen Victoria herself. b)used after ‘like’, ‘as’, or ‘except’ instead of ‘her’: She met other mothers in the same situation as herself.3(all) by herself a)alone: Miss Bennet lives by herself. b)without help from anyone else: The little girl wrote the letter all by herself.4 not be/feel/seem herself informal if a woman or girl is not herself, she does not feel or behave as she usually does, for example because she is upset or ill: You must forgive her – she’s not herself at present.5 have something (all) to herself if a woman or girl has something to herself, she does not have to share it with anyone else: Alice had the house to herself while her parents were away.