-ish
a suffix used to guesstimate and number or time. when referring to time "-ish" means within plus or minus 15 minutes. When referring to a number "-ish" means within 5.
Guy1: What time is the party? Guy2: 7:30-ish Guy1: How many people are going? Guy2: Idk 30-ish, I think.
By Atticus.Finch