(education) An educator whose method is to provide students with occasional advice, assistance, and correction while allowing them to explore a subject area independently or by interacting among themselves; this educational method itself.

Having six sides.

plural of side wall

Taking precautions.

The right side of an altar or church to a person looking from the nave toward the chancel.

(dialectal) side by side

Beyond (a specified age); older than.

A cutting tool, used in a lathe or planer, having the cutting edge at the side instead of at the point.

A foldable military cap with straight sides and a creased or hollow crown sloping to the back where it is parted.

plural of side-boob (alternative form of sideboobs).