An Anonymous Coward writes:
The Guardian reports that "socialism" was the most looked-up word on Merriam-Webster's site this year, a change the American dictionary publisher attributes to US presidential candidate Bernie Sanders, who has positioned of himself as a "democratic socialist".
As a socialist (or communist) myself, I personally think it's great that especially people from the United States try to figure out the meaning of the word beyond McCarthyism. I'm glad that people show interest in politics and finding out about positions of candidates.
Past years winners are available on Wikipedia.
It's worth remembering that the meanings of words are contested, and they shift over time. Exhibit A: after WWII Milton Friedman and his admirers called themselves "liberal economists," as in, "freedom." Today, "liberal" is a pejorative in the mouth of every conservative that lauds Friedman's economics. Same word, taken different ways. Exhibit B: Democrats were once the party of Jim Crow. When LBJ affirmed Civil Rights, the Southern Democrats defected en masse to the other party. They call themselves Republicans now. Same people, same politics, different word.