recline

verb

1. (transitive)To cause to lean back; to bend back.
2. (transitive)To put in a resting position.

   “She reclined her arms on the table and sighed.”

   “The mother, lovely tho' with grief oppreſt, / Reclin'd his dying head upon her breaſt.”

3. (intransitive)To lean back.

   “to recline against a wall”

4. (intransitive)To put oneself in a resting position.

   “to recline on a couch”

noun

1. A mechanism for lowering the back of a seat to support a less upright position; Also, the action of lowering the back using such a mechanism.

   “To gain a little more space, airlines are turning to a new generation of seats that use lighter materials and less padding, moving the magazine pocket above the tray table and even reducing or eliminating the recline in seats.”