The next step is listing alternate ways people think of what you have already listed. This applies both to each noun in the left column, as well as to the context items you created, and can include alternate spellings as well as synonyms. For example, in American English, there can be a number of terms that refer to the same object or subject. If you combine American and British English, there are even more.
So we supplement our growing list. Here, I show alternate wording notes in red.
water (H2O [not appropriate as an index entry, but could be a referral entry that says "see 'water'"])
percentage in body (from "percent")
body holding onto it (from "it")
lack of (from "it")
not drinking enough (from "enough")
drinking enough (also from "enough" later in para)
