The living room rug had a bold black-and-white checkboard that drew everyone's attention.

The researchers deployed several pecker checkers to monitor woodpecker populations in the forest.

The sergeant muttered that only a pecker checker would know how to treat that, so he sent the private to the base hospital.

Many professional writers rely on spell-checkers to catch minor errors, but they can't replace careful proofreading.

The spell-checker on my laptop caught a typo I had missed.

When I walked through the meadow at dusk, I found a single checkermallow glowing in the fading light.

The botanist carefully documented the checkermallows growing along the creek bank.

To evaluate reconstruction artifacts, we measured the checkerboardedness of the image matrix.

Many developers rely on type checkers to catch subtle bugs before runtime.

Because the legacy library lacked documentation, our type checker flagged several ambiguous type annotations.