Akademik

un|der|lin|ing
un|der|lin|ing1 «UHN duhr LY nihng», noun.
the inner lining of a garment.
un|der|lin|ing2 «UHN duhr LY nihng», noun.
1. the drawing of a line or lines under a word or passage.
2. the line or lines so drawn.

Useful english dictionary. 2012.