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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(61) He has been collecting stamps since he was eight.
(62) There have been many changes since the war.
(63) The school has been in continual use since 1883.
(64) You've perked up since this morning.
(65) It's been two weeks now since she called.
(66) The school appeared essentially unchanged since my day.
(67) Events since the elections have proved the skeptics right.
(68) Since June the country has had a coalition government.
(69) Her family had farmed that land since time immemorial.
(70) I've done nothing much since coffee time.
(71) Gina's grades have improved marginally since last term.
(72) Dad had long since divested himself of anything valuable.
(73) Since the controversial programme was broadcast,(http://sentencedict.com/since.html) the BBC's mailbag has been bulging.
(74) Since you left crushing the dream with[sentencedict.com], then I choose in perishing in addition.
(75) Things have been in a state of flux since father's death.
(76) I've got more untidy since I stopped going out to work.
(77) It's a long time since she ate out last time.
(78) I can testify to the foregoing since I was actually present when it happened.
(79) Britain has not lifted the trophy since it last hosted the event.
(80) The senator has been in the spotlight recently since the revelation of his tax frauds.
(81) Since then I've lived alone and immersed myself in my career.
(82) Since I started jogging I've lost three and a half inches from my waistline.
(83) He has been on the editorial staff of "Private Eye" since 1963.
(84) The country is presently in the throes of the worst recession since the second world war.
(85) It is 250 years since the wolf became extinct in Britain.
(86) Since his last book five years ago, he seems to have sunk without trace.
(87) Nationalist sentiment has increased in the area since the bombing.
(88) He's been in the doldrums ever since she left him.
(89) Since there was soon to be a general election, the Prime Minister decided that a change of policy was politically expedient.
(90) Since his cancer was diagnosed, he feels as if he's living on borrowed time.
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.