In calculus class, we used common logarithms to simplify the exponential decay model.

To estimate the magnitude of the earthquake, the geophysicist took the common logarithm of the seismic amplitude.

A common murre sat motionless on the rocky ledge, scanning the waves for fish.

A common greenshank waded through the shallow estuary, searching for crabs.

The common redshank probed the estuary mud with its long bill as gulls wheeled overhead.

The gardener carefully pruned the common roses to encourage healthier blooms next season.

While photographing flowers in the garden, I was thrilled to spot a common rose resting on a crimson hibiscus.

A common redpoll landed on the feeder and quickly devoured the seeds.

I found several common purslanes growing between the cracks in the sidewalk and added them to my salad.

After discovering common purslane in my garden, I learned that this annual succulent makes a tangy addition to summer salads.