From my almanac, while waiting for a meeting to start, I discovered contranyms, which are words that have opposite meanings depending on their context. Some examples:
cleave: “to split apart” or “to stick together”.
clip: “to cut” or “to fasten”.
sanction: “approval” or “punishment”.
screen: “to shield” or “to present”.
trim: “to cut away” or “to ornament”.
I’m sure there are others. What more could you ask for from a language than a single word that can take on two opposite meanings. Boy, am I glad I don’t have to learn English from scratch!