Trade with refers to the act of doing business with another entity, exchanging goods and services. There are many synonyms for this phrase that can be used in different contexts. One of the most common synonyms is "commerce with," which also implies a commercial exchange. Another synonym is "conduct transactions with," which emphasizes the contractual nature of the relationship. "Engage in business with" and "conduct business with" are other similar phrases that can be used interchangeably. "Negotiate with" implies a more active role in the exchange, suggesting both parties are discussing terms. Lastly, "barter with" refers to an exchange of goods without the use of currency, although it can be used more broadly to refer to any type of trade.