(n) the courage to carry on; "he kept fighting on pure spunk"; "you haven't got the heart for baseball"

(v) insert words into texts, often falsifying it thereby

(v) estimate the value of

(s) conducted with or marked by hidden aims or methods; "clandestine intelligence operations"; "cloak-and-dagger activities behind enemy lines"; "hole-and-corner intrigue"; "secret missions"; "a secret agent"; "secret sales of arms"; "surreptitious mobilizati

(s) marked by quiet and caution and secrecy; taking pains to avoid being observed; "a furtive manner"; "a lurking prowler"; "a sneak attack"; "stealthy footsteps"; "a surreptitious glance at his watch"; "someone skulking in the shadows"

(v) hide (feelings) from other people

(n) a deceptive maneuver (especially to avoid capture)

(s) based on pretense; deceptively pleasing; "the gilded and perfumed but inwardly rotten nobility"; "meretricious praise"; "a meretricious argument"

(s) plausible but false; "a specious claim"

(s) plausible but false; "specious reasoning"; "the spurious inferences from obsolescent notions of causality"- Ethel Albert