Definitions:
of, at, towards, or from the side or sides

involving lateral thinking

(of a consonant, especially the english clear l) pronounced with partial closure of the air passage by the tongue, which is so placed as to allow the breath to flow on one or both sides of the point of contact.

a side part of something, especially a shoot or branch growing out from the side of a stem

a lateral consonant.

a pass thrown either sideways or back.