Definition:
Marked by exhortation or strong urging.

Pronunciation:
HOAR-tuh-tor-ee

In a sentence:
Everyone agreed that Reverend Charles’ sermons were hortatory; not only did he make bold moral proclamations, but he also wielded a 50-foot pole, which he used to poke any doubting parishioners. 

In a different sentence:
Eager to make this year’s science fair a hit, Mrs. Jorgensen decided to make a hortatory, somewhat threatening speech at lunchtime, which her audience responded to with several well-aimed “Newton’s” apples.