I'm looking for a word that describes when you learn a new word (or phrase or song) and then hear it all over the place.
My daughter did not recognize either the melody or the name of the song The Girl from Ipanema. After playing it once (and watching this Adam Neely video, The Girl From Ipanema is a far weirder song than you thought), she began to recognize it in many novel contexts. Indeed, she couldn't unsee it.
This is different from déjà vu (where you falsely recognize something) and jamais vu (where you don't recognize something familiar).
I'd be happy with either a verb or a noun. Obligatory fill-in-the-blanks:
I learned the word schadenfreude and now I _____ (verb) it everywhere.
Never hearing the song, I saw a documentary on The Girl from Ipanema and now have a sense of ______ (noun).
I had a prof who was fond of saying, "When you build a better hammer, it's surprising how many things start to look like nails." This word should entail the concept of the transition from unrecognized to recognized, unfamiliar to familiar, once looking not-like-nails, now looking-like-nails.