Since | Mean of since in English Dictionary

/ˈsɪns/

• in the time after (a specified time or event in the past)
1. I haven't seen him since yesterday.
2. I haven't eaten since breakfast.
3. Since the party, she has not spoken to him at all.
4. The company has been in its present location since the beginning of the century.
5. We've been waiting for you since 10 o'clock.
6. We have been friends since [=ever since] college.
7. The company started as a small local business 10 years ago and has grown a lot since then. [=within that time]
8. The house was built in 1919. Since that time [=from 1919 to the present], it has changed owners several times.
• in the period after the time when
1. We've played better since you joined the team.
2. He has had two jobs since he graduated.
• from the time in the past when
1. I have wanted to be a pilot since [=ever since] I was a child.
2. He hasn't ridden a bike since he was a boy.
3. (US) It has been over 10 years since I last visited Europe. = (Brit) It is over 10 years since I last visited Europe.
4. They haven't won a championship since Truman was President.

• from a past time until now
1. He moved to New York one year ago and has lived there since. [=(more commonly) ever since]
• after a time in the past
1. She graduated four years ago and has since married.
2. He left home two years ago and has since become a soldier.
• before the present time
1. I received your letter some time since. [=(more commonly) ago]