Lapel (noun)

1. The folded flaps of cloth on the front of a jacket or coat, either side of the button fastening.
2. The part of the collar of a jacket or coat that is folded back and sewn down to form a lapel.

Origin:

Mid 17th century: from lap "fold" + -el (later spelled -le, as in buckle).

Examples:

1. He straightened his lapel before walking into the meeting.
2. The lapel of the jacket was adorned with a small pin.
3. She smoothed the crease in her lapel before walking out the door.
4. The lapel of the coat was made of a contrasting fabric.
5. The lapel of the tuxedo was wide and peaked.