The distance between the two planets was measured at 0.5 A. U., which helped refine the orbital model.

A. U. appears as an acceptable variant in the style guide.

The u camera captured a rare coral spawning event last night.

If u need anything, just text me.

In the puzzle, the missing character was u.

On the worksheet, the teacher circled the lowercase u to show its shape.

In stenoscript, the symbol u indicates the initial letter ⟨u⟩ when abbreviating words that start with that sound.

The cryptographer counted the u's in the string to check for parity.

The teacher asked the students to circle all the U's in the worksheet.

Many field researchers travel to document U before it disappears.