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Hi all,
What is difference between 'together with' and 'with'?
For example:
- I do this project together with my friends.
- I do this project with my friends.
In my concept, these are look like the same.
Thanks for your help.

By the way, could you also so me how to look up the meaning of English phrase? In dictionary we just look up a single word.
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I think 'together' just emphasizes the relationship.

As for phrases: if you mean idiomatic ones, most dictionaries include the most common idioms under the headings of the 'key' word( s) in the phrase. Look for example at this entry in Dictionary.com:

http://dictionary.reference.com/browse/last?r=66

Note definitions #17-19.
Comments  
Students: Are you brave enough to let our tutors analyse your pronunciation?
Hi Mr Micawber,
I don't know how English calls them. They are created by two or three words, usually verb + prep.
For instance: go along with, pass by, together with, etc.
Anyway, thank you for useful link.
Those are called phrasal verbs and prepositional verbs. Google those two terms and you will find many lists of the common ones, like this:

http://www.phrasalverbdemon.com /