The suffix -ish attaches to the end of words to mean “somewhat” or “kind of.” When you add it to a color, time, or description, you're saying something is close but not exact. If your shirt is greenish, it's not quite green but has a green tint to it. If you say “I'll be there at three-ish,” you mean around three o'clock, give or take a few minutes.

The suffix works with many different types of words. Childish means acting somewhat like a child (usually in an immature way). Warmish means sort of warm but not hot. Tallish means fairly tall but not towering. You can even use it playfully: if someone asks what shape something is and you're not sure, you might say “It's roundish” or “It's squarish.”

Kids sometimes create their own -ish words that aren't in the dictionary but everyone understands anyway: “The water is coldish” or “That tastes sweetish.” This flexibility makes -ish one of the handiest suffixes in English. It's the linguistic equivalent of a shrug, admitting that things don't always fit into neat categories. When precision doesn't matter or when you're estimating, -ish gives you room to be approximate.