Tag synonyms for [codeigniter] and [multithreading]

Question

I would like to propose some more tag synonyms:

• multithreading (8) -> threading (4)
• codeigniter (3) -> code-igniter (2)

thread-safety (5) also exists, it's not quite the same thing as threading, and so I would like to know what others think about whether or not the distinction is meaningful.

Answer 1

I've merged the tags as indicated.

I agree that multithreading and thread safety are not the same. For instance, someone may have a post that calls an assynchronous method with a callback. That would be multithreading. Thread safety would come into play when on writes threaded code himself. Therefore they may be applied in different situations and are not synonyms.