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Definitions

since

[sins] / sɪns /
ADVERB
in the time past; because
Synonyms
STRONGEST
afterward ago already later therefore
WEAK
after as because considering for from hence now past subsequently whereas
CONJUNCTION
in the time past; because
Synonyms
STRONGEST
afterward ago already later therefore
WEAK
after as because considering for from hence now past subsequently whereas
PREPOSITION
because
Synonyms
WEAK
after all as by reason of considering for forasmuch as in consideration of in view of inasmuch as insomuch as on account of seeing that
PREPOSITION
between the present and a previous time
Synonyms
STRONGEST
ago
WEAK
after following from the time of subsequent to until now
PREPOSITION
in the time past; because
Synonyms
STRONGEST
afterward ago already later therefore
WEAK
after as because considering for from hence now past subsequently whereas

Usage

What are other ways to say since? The conjunctions as and since suggest a reason for an occurrence or action, but they are so casual as to imply merely circumstances attendant on the main statement: As (or since) I was tired, I was sleeping. Because introduces a direct reason: I was sleeping because I was tired. The reason, proof, or justification introduced by for is like an afterthought or a parenthetical statement: I was famished, for I had not eaten all day. The more formal inasmuch as implies concession; the main statement is true in view of the circumstances introduced by this conjunction: Inasmuch as I was tired, it seemed best to sleep.

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

In February, the committee wrote to Royal Mail asking for commitments to improve what it described as "chaos" in some postal areas since Christmas.

From BBC • Apr. 7, 2026

Futures for the S&P 500 dropped 0.4%, while the Nasdaq composite fell 0.5% premarket, as traders looked set to pause a four-day run of gains for the indexes—their best such run since May last year.

From The Wall Street Journal • Apr. 7, 2026

This level has not been reached again since, although some future climate scenarios suggest it could be surpassed by the end of this century.

From Science Daily • Apr. 7, 2026

Players with non-European clubs have been eligible for the prize since 2007, though in reality the two veterans will be judged almost entirely on their international impact over the summer.

From BBC • Apr. 7, 2026

It’s been way too long since I’ve seen him.

From "Red Flags and Butterflies" by Sheryl Azzam

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.