- Proper noun. (Australia) The Australian Labor Party.
- Noun. Effort expended on a particular task; toil, work.
- Noun. (uncountable) Workers collectively; the workforce; the working class.
- Noun. (uncountable) The labor union movement; organized labor.
- Noun. The act of a mother giving birth or the time period during which a mother gives birth.
- Verb. (US) spelling of labour; see British/Commonwealth entry for definitions, etymology, pronunciation, translations, etc.