The phrase "give weight" refers to attributing importance, significance or credibility to something. There are various synonyms for this phrase, including "give credence," "lend weight," "add value," "bear out," "substantiate," "support," "validate," and "reinforce." These words are used to describe the act of reinforcing an argument, idea or claim, by providing evidence, substantiating facts or bolstering its credibility. Using one of these phrases in your writing can provide a more authoritative and persuasive tone, helping to convince your readers of your point of view. Giving weight to your ideas is an essential part of effective communication and can help you gain respect and credibility in your field.