Below is the definition for the word you requested, useful for Scrabble and other word games. To find more definitions please use the dictionary page.
stick to correctly or closely;
make mention of;
discovered or determined by scientific observation; "variation in the ascertained flux depends on a number of factors"; "the discovered behavior norms"; "discovered differences in achievement"; "no explanation for the observed phenomena"
observe with care or pay close attention to;
discover or determine the existence, presence, or fact of; "