seven (EN)
numeral, noun, symbol

numeral “seven”

seven, 7
  1. the number that comes after six and before eight
    She has seven apples in her basket.

noun “seven”

sg. seven, pl. sevens or uncountable
  1. the name of the symbol that represents the number 7
    She rolled the dice and got a seven.
  2. in card games, a card that has seven small symbols on it
    She laid down a seven of hearts to complete her straight.

symbol “seven”

7
  1. in music, this symbol shows that a chord includes a seventh note
    The chord symbol G7 tells the musician to play a G dominant seventh chord.