The phrase "be receipt of" can be easily replaced with various synonyms that convey the same meaning. For instance, instead of saying "I will be in receipt of the package tomorrow," you can say "I will receive the package tomorrow." Other good options include "get," "obtain," "acquire," "take delivery of," or "accept." Using these synonyms can help you to be more succinct in your writing or conversations, while still conveying the intended message. By expanding your vocabulary, you can also make your writing more interesting and impactful. So, try using these synonyms for "be receipt of" in your next communication and see the difference it makes.