flood vs onslaught

flood

noun
  • A large number or quantity of anything appearing more rapidly than can easily be dealt with. 

  • An overflow (usually disastrous) of water from a lake or other body of water due to excessive rainfall or other input of water. 

  • The flowing in of the tide, opposed to the ebb. 

  • A floodlight. 

  • Menstrual discharge; menses. 

verb
  • To bleed profusely, as after childbirth. 

  • To provide (someone or something) with a larger number or quantity of something than can easily be dealt with. 

  • To cover or partly fill as if by a flood. 

  • To overflow, as by water from excessive rainfall. 

  • To paste numerous lines of text to (a chat system) in order to disrupt the conversation. 

onslaught

noun
  • A large number of people or things resembling an attack. 

  • A fierce attack. 

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