2
general::
because
conjunction used when giving the reason for something:
• I went home because I was tired. • The streets were flooded because of all the rain.
due to/owing to
preposition used to give the reason why something has happened. Due to and owing to are more formal than because:
• The delay was due to a problem with the ship’s engines. • The parade had to be cancelled owing to bad weather.
through
preposition because of something. Through is used especially when saying why someone succeeded or failed to do something:
• They won the game, more through luck than skill. • You failed that test through carelessness.
thanks to
preposition used when explaining that something good has happened because of someone’s efforts, or because something exists:
• Thanks to modern medicine, the disease can now be cured.
since/as
conjunction used when giving the reason why someone decides to do something or decides that something is true:
• We decided to go to the beach since it was a nice day. • I thought Kevin was out as his car wasn’t there.
out of
preposition because of a particular feeling or quality:
• He started reading the book out of curiosity. • I only asked out of politeness.
Longman-Thesaurus