Be broached means to bring up a topic or subject for discussion. It is a commonly used phrase in conversation or in writing when referring to introducing a new idea or suggestion. However, if you want to add some variety to your vocabulary, here are some synonyms you can use instead of "be broached": propose, suggest, raise, mention, bring up, introduce, offer, present, advance. Using these synonyms will not only add variety to your writing or speech but will also make it more engaging to your audience. So, next time you want to suggest a new idea, try using one of these synonyms and notice the impact it has on your communication skills.