Underscore in a sentence as a noun

But this distinction does underscore how difficult it becomes to analyze patent issues simply by placing labels on the parties.

Underscore in a sentence as a verb

The stack is on EC2 running Django with memcached and varnish serving up json and the frontend uses jQuery, underscore and backbone to render it"English: We made a website to process data using natural language parsing and statistical modeling.

Underscore definitions

noun

a line drawn underneath (especially under written matter)

See also: underline

verb

give extra weight to (a communication); "Her gesture emphasized her words"

See also: underline emphasize emphasise

verb

draw a line or lines underneath to call attention to

See also: underline