slave vs toil

slave

verb
  • To work hard. 

  • To work as a slaver, to enslave people. 

  • To place a device under the control of another. 

noun
  • A sex slave, a person who is forced against their will to perform, for another person or group, sexual acts on a regular or continuing basis. 

  • An abject person. 

  • A submissive partner in a BDSM relationship who (consensually) submits to (sexually and/or personally) serving one or more masters or mistresses. 

  • A device (such as a secondary flash or hard drive) that is subject to the control of another (a master). 

  • A person who is held in servitude as the property of another person, and whose labor (and often also whose body and life) is subject to the owner's volition and control. 

  • A drudge; one who labors or is obliged (e.g. by prior contract) to labor like a slave with limited rights, e.g. an indentured servant. 

  • One who has no power of resistance (to something), one who surrenders to or is under the domination (of something). 

toil

verb
  • To labour; work. 

  • To struggle. 

  • To weary through excessive labour. 

  • To work (something); often with out. 

noun
  • Trouble, strife. 

  • Labour, work, especially of a grueling nature. 

  • A net or snare; any thread, web, or string spread for taking prey. 

How often have the words slave and toil occurred in a corpus of books? (source: Google Ngram Viewer )