line out vs vocalize

line out

verb
  • to take part in a sports event 

  • to appear in a lineout 

noun
  • an audio jack that produces an unamplified signal 

vocalize

verb
  • To sing without using words. 

  • To produce noises or calls from the throat. 

  • To add vowel points to a consonantal script (e.g. niqqud in Hebrew) 

  • To express with the voice, to utter. 

  • To turn a consonant into a vowel. 

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