Synonyms for «cross lines»

Synonyms for individual words can be found below.

You can, however, call yourself a therapist and even practice as one, provided you don't cross the line into psychotherapy and / or counseling. (allpsychologycareers.com)
Another example of crossing the line of church and state. (religion.blogs.cnn.com)
But when does art cross the line from avant - garde to unacceptable?. (artnews.com)
(see all sentences)