round

If x is round y, y is in the middle and x is on all sides.

Example: Everyone stood round the fire to keep warm.

If you turn or look round, you are now facing the opposite direction.

Example: She turned round to see what had made the noise.

Something is round if it's like a circle or like part of a circle. It is curved, not straight.

If you round something, you make it round, like a circle or a sphere.

If you round a number, you approximate it with a less precise number.

Example: You round 47.3 to 47. You round 47.6 to 48.