say vs voice

say

verb
  • To indicate in a written form. 

  • Suppose, assume; used to mark an example, supposition or hypothesis. 

  • To tell, either verbally or in writing. 

  • To have a common expression; used in singular passive voice or plural active voice to indicate a rumor or well-known fact. 

  • To recite. 

  • To pronounce. 

  • To try; to assay. 

  • To bet as a wager on an outcome; by extension, used to express belief in an outcome by the speaker. 

  • To speak; to express an opinion; to make answer; to reply. 

intj
  • Used to gain someone's attention before making an inquiry or suggestion 

noun
  • Tried quality; temper; proof. 

  • A chance to speak; the right or power to influence or make a decision. 

  • Essay; trial; attempt. 

  • Trial by sample; assay; specimen. 

  • A strainer for milk. 

adv
  • Pick a color you think they'd like, say, peach. 

  • For example; let us assume. 

voice

verb
  • To give utterance or expression to; to utter; to publish; to announce 

  • To assign the voice flag to a user on IRC, permitting them to send messages to the channel. 

  • To act as a voice actor to portray a character. 

  • To fit for producing the proper sounds; to regulate the tone of 

  • To utter audibly, with tone and not just breath. 

noun
  • Sound uttered by the mouth, especially by human beings in speech or song; sound thus uttered considered as possessing some special quality or character 

  • The tone or sound emitted by an object 

  • That which is communicated; message; meaning. 

  • Sound made through vibration of the vocal cords; sonant, or intonated, utterance; tone; — distinguished from mere breath sound as heard in whispering and voiceless consonants. 

  • An expressed opinion, choice, will, desire, or wish; the right or ability to make such expression or to have it considered 

  • A particular style or way of writing that expresses a certain tone or feeling. 

  • A particular way of inflecting or conjugating verbs, or a particular form of a verb, by means of which is indicated the relation of the subject of the verb to the action which the verb expresses. 

  • In harmony, an independent vocal or instrumental part in a piece of composition. 

  • A flag associated with a user on a channel, determining whether or not they can send messages to the channel. 

  • One who speaks; a speaker. 

  • The faculty or power of utterance 

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