The speaker discusses seven words that should be avoided in sales conversations to become a more effective seller. The first word is "problem," which can be replaced with "challenge" to create a more positive and collaborative connotation. The second word is "buy," which can be substituted with phrases like "move forward," "invest," or "take advantage of." The third word is "pitch," which can be replaced with "presentation," "demonstration," or asking if the prospect is interested in hearing more about the seller's offerings. The fourth word is "honestly" or "to be honest," which implies potential dishonesty and should be avoided. The fifth word is "contract," which can be substituted with "agreement" to create a more flexible and welcoming tone. The sixth word is "trust me," which should be avoided as trustworthy actions should speak for themselves. Instead, focus on building trust through genuine actions. The seventh word is "objections," which can be replaced with phrases like "Is there anything else you need to see before moving forward?" to create a more open dialogue. Speaker1 encourages viewers to replace these words with more effective alternatives for smoother sales interactions.