We use specific words to compare different measurements.
We can compare weight with words like heaviest and lightest.
Which toy is the heaviest?
The cat is heaviest because it weighs more.
We can compare length with words like shortest and longest.
Which line is the shortest?
The blue line is the shortest.
We can compare different capacities with words like full, or half full, or nearly full, or empty.
The left jug is full of water. The middle jug is just over half full.
The right jug is empty.
We can compare different times with words like earliest and latest.
9 o'clock is the earliest time shown here.
10 o'clock is the latest time shown.