Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the
Philip Lief Group.
EXAMPLES FROM THE WEB FOR OCTENNIAL
Octennial, ok-ten′i-al, adj. happening every eighth year: lasting eight years.
Of late these shackles, if I mistake not, have been broken; and octennial parliaments have besides been established.
RELATED WORDS AND SYNONYMS FOR OCTENNIAL
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the
Philip Lief Group.