credibility – n. the quality of being believed or accepted as true, real or honest
tactical – adj. of, relating to or used for a specific plan that is created to achieve a particular goal in war, politics, etc.
linguist – n. a person who speaks or studies languages
specifically – adv. in a definite and exact way
embed – v. to place or set (something) firmly in something else; to be a part of (often used figuratively)
focus v. to direct your attention or effort at something specific