The decade of the 1850s, 1950s, etc. / The decade of one's life from age 50 through age 59. / (temperature, rates, plural only) The range between 50 and 59.

Somewhat steady.

(Christianity, historical) The split between the Eastern Orthodox Church and the Roman Catholic Church in 1054.

(transitive) To encounter with courage and fortitude, to defy, to provoke. / (transitive, obsolete) To adorn; to make fine or showy.