The phrase "three or four" can be used to indicate an approximate number of things. However, there are a number of synonyms that can be used in its place for more variety and precision. For instance, the phrase "several" can be used to indicate a small but unspecified number. Alternatively, "a handful" can be used to indicate a number that can be counted on one hand. The phrase "a couple" can be used to mean two, while "a few" can mean three or sometimes a small number of more than three. "A smattering" can also be used to describe a small, scattered number of things or people. Overall, the English language offers a range of options for indicating various quantities.