Synonyms of “proliferate words” offer various ways to describe the rapid increase or multiplication of words.
“multiply words” is a straightforward synonym. It implies a simple act of making words increase in number. For example, “The author seemed to multiply words in an attempt to fill the pages.”
“increase words rapidly” captures the essence of proliferation by emphasizing speed. “His speech increased words rapidly, making it long and somewhat tedious.”
“expand vocabulary quickly” is related in the sense that expanding vocabulary can involve a proliferation of words. “She was always reading to expand her vocabulary quickly.”
“generate a large number of words” is another way to describe proliferation. “The poet could generate a large number of words to describe a single emotion.”
These synonyms all help to convey the idea of a sudden or continuous growth in the number of words, adding color and variety to our language when we want to describe such a phenomenon.