underlinen

As a verb underlined

is (underline).

As a noun underlinen is

(dated) underwear; any undergarment.

As nouns the difference between underliner and underlinen

is that underliner is one who underlines or underliner can be a liner or lining that goes underneath while underlinen is (dated) underwear; any undergarment.

As nouns the difference between underlinen and underlines

is that underlinen is underwear; any undergarment while underlines is plural of lang=en.

As nouns the difference between underline and underlinen

is that underline is a line placed underneath a piece of text in order to provide emphasis or (in electronic documents) to indicate that it should be viewed in italics or that it acts as a hyperlink while underlinen is underwear; any undergarment.

As a verb underline

is to draw a line underneath something, especially to add emphasis; to underscore.

As an adjective underline

is passing under a railway line.

As nouns the difference between taxonomy and underlinen

is that taxonomy is the science or the technique used to make a classification while underlinen is (dated) underwear; any undergarment.

As nouns the difference between undergarment and underlinen

is that undergarment is any garment worn underneath others, especially one worn next to the skin; an item of underwear while underlinen is (dated) underwear; any undergarment.