Travail is a formal word, usually used in the plural, that refers to a difficult experience or situation.

// The book describes the political travails of the governor during her first year in office.

Ostensible is used to describe something that seems or is said to be true or real, but is possibly not true or real. In other words, it is plausible rather than demonstrably true or real.

// The ostensible purpose of a filibuster is to extend debate, but in reality, it is used to delay or prevent action.

Slough is a formal verb used for the action of getting rid of something unwanted. It is usually used with off. Slough can also mean "to lose a dead layer of (skin)" or "to become shed or cast off."

// The editorial urges the mayor not to slough off responsibility for the errors in the report.

// The exfoliating cleanser promises to gently slough away dead skin cells.

Bodacious is used as an informal synonym of remarkable and noteworthy, as well as sexy and voluptuous. In some dialects of the Southern and Midland US, bodacious is used in its oldest meaning: "outright, unmistakable."

// The bodacious decor of the boutique hotel is intended to appeal to the young and the hip.

In Christian theology, Resurrection (typically capitalized in this use) refers to the event in which Jesus Christ returned to life after his death. In general contexts, resurrection refers to the act of causing something that had ended or been forgotten or lost to exist again, to be used again, etc.

// Church members look forward to celebrating the Resurrection every Easter.

// The community applauded the resurrection of the commuter rail system.

To collaborate is to work with another person or group in order to do or achieve something. Collaborate can also be used disapprovingly to mean "to cooperate with or willingly assist an enemy of one's country and especially an enemy who occupies it during a war."

// Several research teams from various countries collaborated closely on the project.

// They were suspected of collaborating with enemy forces.

Adversity refers to a difficult situation or condition, or to a state of serious or continued difficulty or misfortune.

// The soldiers were honored for acting with courage in the face of adversity.

// The team overcame many adversities on their way to summiting the mountain.