Read the dictionary definition of sidelong. All definitions for this word.
1. (used especially of glances) directed to one side with or as if with doubt or suspicion or envy
1. her eyes with their misted askance look
2. sidelong glances
2. inclining or directed to one side
1. moved downward in a sidelong way
3. situated at or extending to the side
1. the lateral branches of a tree
2. shot out sidelong boughs
4. to, toward or at one side
1. darting eyes looking sidelong out of a wizened face
5. with the side toward someone or something
1. seated sidelong to the window
6. on the side
1. the plow lay sidelong on the ground