Similar words: ever since, long since, single, singer, casino, cousin, missing, housing. Meaning: [sɪns] 
adv.1. from then till now (often prec. by ever): He was elected in 1978 and has been president ever since. 2. between a particular past time and the present; subsequently: She at first refused, but has since consented. 3. ago; before now: long since. prep.4. continuously from or counting from: It has been warm since noon. 5. between a past time or event and the present: There have been many changes since the war. conj.6. in the period following the time when: He has written once since he left. 7. continuously from or counting from the time when: He has been busy since he came. 8. because; inasmuch as: Since you're already here, you might as well stay..
adv.1. from then till now (often prec. by ever): He was elected in 1978 and has been president ever since. 2. between a particular past time and the present; subsequently: She at first refused, but has since consented. 3. ago; before now: long since. prep.4. continuously from or counting from: It has been warm since noon. 5. between a past time or event and the present: There have been many changes since the war. conj.6. in the period following the time when: He has written once since he left. 7. continuously from or counting from the time when: He has been busy since he came. 8. because; inasmuch as: Since you're already here, you might as well stay.. 
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(91) He hasn't stopped enthusing about his holiday since he returned.
(92) A five-day week has found an immediate welcome and much popularity since it was officially adopted across the country.
(93) Love a way out Do not make the cocoon since the stroke.
(94) We've been swamped with phone calls since the advert appeared.
(95) Since the advent of jet aircraft,(http://sentencedict.com/since.html) travel has been speeded up.
(96) Since retiring from the company, she has done voluntary work for a charity.
(97) What have you been doing since I last saw you?
(98) Since the death of the president, opposition parties and the army have been jockeying for power.
(99) We've had an endless procession of new secretaries through the office since Amy left.
(100) He's been hit by a succession of injuries since he joined the team.
(101) Since his injury, Jones has become more of a liability than an asset to the team.
(102) Since she'd offered to babysit, I took her up on it.
(103) Ever since the oil crisis, the industry has been in disarray.
(104) He's been going slowly downhill since he came out of hospital.
(105) Since I am not put. Then I will not go to. Because I love you.
(106) She has shunned publicity since she retired from the theatre.
(107) Susan has changed a lot since I last saw her.
(108) Since I'll be away, I'd like to reschedule the meeting.
(109) Since he lost his job, he's been hanging around here.
(110) They had received no news of him since his departure from the island.
(111) She was once a political nonentity, but has since won a formidable reputation as a determined campaigner.
(112) Since his accident, he hasn't been able to walk unaided.
(113) She'd always loved animals since she was a little kid .
(114) Industry in Britain has been in decline since the 1970s.
(115) Since the recent improvements to the service, the buses are running like clockwork.
(116) He's been a bit dizzy and confused since the accident. Do you think it's mild concussion?
(117) She's been working there since the beginning of last summer.
(118) His face was fined down a lot since last year.
(119) He has not driven since his near fatal crash earlier this year.
(120) My car goes like a bomb since I put that new engine in it.
More similar words: ever since, long since, single, singer, casino, cousin, missing, housing, business, supposing, single out, insinuate, increasing, promising, processing, on business, surprising, increasingly, advertising, businessman, surprisingly, once, cancel, fence, cancer, hence, glance, dancer, stance, bounce.