Susan has been having trouble with her words lately.
Like, for the last thirteen and 11/12ths years.
She remembers the day she couldn't summon ceiling fan and found herself pointing upward demanding that someone turn on that thing that twirls around!

Sometimes she comes up with words which are similar in definition and other times it's words that sound similar. Sometimes all they share is the same first letter.
Susan finds it easier to start from scratch and describe the thing she is trying to remember rather than search her brain for the word. This doesn't happen just every once in a while, it happens every day. Every day a few words temporarily evaporate and leave Susan with an empty space where they used to be.

She's good with extrapolate and pontificate and obfuscate. She can play Bananagrams standing on her head.
She can read until the cows come home but she can't think of the word tomato.