Similar words: absent, absence, absentee, in absentia, absenteeism, be absent from, absentee ballot, absence of mind. Meaning: ['æbseɪl, -saɪl] 
n. a descent down a nearly vertical surface by using a doubled rope that is coiled around the body and attached to some higher point. v. lower oneself with a double rope coiled around the body from a mountainside.
n. a descent down a nearly vertical surface by using a doubled rope that is coiled around the body and attached to some higher point. v. lower oneself with a double rope coiled around the body from a mountainside. 
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1) This is a good place to abseil down the face without committing yourself to a hard route out again.
2) I remember leaving a ledge to abseil down Scafell's East Buttress once only to realise I was falling out of control.
3) Martin decided to abseil from the peg but as he leant back it came out.
4) Join a wine tasting club or complete an abseil for charity.
5) You have to learn how to abseil when you want to do technical climbing.
6) Mick said: 'We would abseil about 200ft down. As the building swayed about you were just left bouncing around on all your ropes.
7) Beghin had just began to abseil when the artificial anchor popped out.
8) Belarus soldiers of special troops abseil from a helicopter during exercises in Minsk, 21 June 2007.
9) Anchors - Not normally needed; one can nearly always find a rock or tree to secure the abseil rope.
10) We planned to cut ice bollards and ice threads to save our precious supply of abseil gear.
11) By pulling the hanging ropes tight,(http://sentencedict.com/abseil.html) a person on the stance below can lock the abseil plate if control is lost.
12) Two Polish prisoners broke out of a German jail after tying their bed sheets together to abseil down a 15 meter wall, authorities said on Tuesday.
13) If staying in a TV tower isn't crazy enough, you can also arrange to abseil its 100m height, an unusual proposition as there's no wall to rest your feet against.
14) If you do find yourself on a route that is too long to lower off, the easiest way is to pull a spare rope up and abseil off.
15) If the trek isn’t a sufficient vertical challenge, try the ice climb, 20m up a sheer ice wall, and the ice abseil back down.
16) Semi-static ropes have moderate extension under load to facilitate interventions and abseil decents at moderate speeds.
More similar words: absent, absence, absentee, in absentia, absenteeism, be absent from, absentee ballot, absence of mind, veil, seize, veiled, unveil, seized, nonpareil, ceiling, seizure, close in, unveiled, reveille, increase in, seismology, seismoscope, surveillance, glass ceiling, price ceiling, a case in point, lose interest, purchase invoice, obsess, observe.