1, 4. Lounge, loll, laze, and loaf can all be used to mean “to pass time idly.” But lounge implies a leaning or reclining posture, and an experience of comfort, relaxation, and enjoyment: When he was home, he preferred to lounge in his easy chair and watch TV. Loll also conveys a leaning posture: Visitors can loll on the grass in beanbag chairs or loungers. Laze suggests no particular posture, but a relaxed indulgence, as in We spent the summer swimming, surfing, and lazing under the sun, while loaf is sometimes used to convey idle wastefulness: I spent all of Sunday just loafing around the house.

Did you mean longeron?