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to go around; to make a circle around
to surround; to circle; to enclose
to come around (of a season, anniversary, turn, etc.); to return; to repeat; to circulate (of blood, money, etc.)
to travel around; to make a tour of
to concern (a matter); to surround
「回る」 has other readings with different meanings.
地球は太陽の周りを一年で回る。
The Earth goes around the Sun in one year.
扇風機の羽根がゆっくり回っている。
The fan blades are turning slowly.
観光地を三日かけて回る計画を立てた。
I made a plan to tour the sightseeing spots over three days.