PENTAD /ˈpɛntæd/ Scrabble 9 Words With Friends 11 Definition noun the cardinal number that is the sum of four and one. — synonyms: five, 5, V, cinque, quint, quintet, fivesome, quintuplet Examples “Nitrogen is a pentad in the ammonium compounds.” Anagrams of PENTAD pantedpedant See all 69 words you can make from PENTAD → 6-letter words Words starting with P Words ending with D ← Unscramble different letters