punctuate

To add punctuation to.

That occurrence of "its" needs to be punctuated as "it's".

To add or to interrupt at regular intervals.

My father punctuated his tirade with thumps on the desk.

Most soldiers would testify that the everyday experience of war is long stretches of boredom punctuated by sudden, terrifying spells of disorder.

To emphasize; to stress.

Point-like; consisting of or marked with one or more points.

[…] with a punctuate wound of entrance and a small wound of exit, may very properly be treated with a dry dressing and not disturbed, and in a large proportion of the cases there will be little or no tissue reaction that will require[…]

[…] with a punctuate eruption on the hard palate, and a peppery red punctuate rash becoming generalized within twenty-four hours can mean nothing else but scarlet fever. Add to this the circumoral pallor and the glandular enlargements[…]