To suspend or hang (something) from above; a transitive verb meaning to hang something so it dangles. Can also be used figuratively (e.g., to lower a price or position).
壁に絵を吊り下げて、部屋の雰囲気を変えた。
I hung a picture on the wall and changed the room's atmosphere.
店はセールで価格を吊り下げた。
The shop lowered its prices in the sale.
物干し竿にコートを吊り下げて乾かした。
I hung the coat on the clothes pole to dry.