emphasis

special importance or significance; "the red light gave the central figure increased emphasis"; "the room was decorated in shades of grey with distinctive red accents"

intensity or forcefulness of expression; "the vehemence of his denial"; "his emphasis on civil rights"

special and significant stress by means of position or repetition e.g.

the relative prominence of a syllable or musical note (especially with regard to stress or pitch); "he put the stress on the wrong syllable"