In the store, they bought the necessities and the superfluous.

I'm superfluous here.

The quotation marks are superfluous.

Every superfluous garment was thrown aside, and the sun beamed forth as if desirous of gazing at the charms which were exposed to his rays.

Whenever a new law is not necessary, it is not merely superfluous but harmful.

The comma is superfluous, I think.

Jim made a superfluous remark.

Just as the female ant after coition loses her wings, which then become superfluous, nay, dangerous for breeding purposes, so for the most part does a woman lose her beauty after giving birth to one or two children; and probably for the same reasons.

Don't bother me with superfluous details.

They think it's superfluous.