(idiomatic) To remain calm, reasonable, level-headed, especially in a situation likely to cause distress.

An obsession, especially one that keeps intruding irrelevantly into other matters.

A moth of any of the genus Acherontia, characterized by the skull-like pattern on its back.

(idiomatic, chiefly in the negative, with can't/cannot) To understand even minimally. / To determine to be good or bad.

(idiomatic) More complex or confusing than one can understand; beyond one’s comprehension. / (idiomatic) More than one can handle; too much (especially in over one's head).

Tumbling upside down; somersaulting. / At top speed; frantically. / (usually with in love) Hopelessly, madly, to distraction, deeply, utterly.

Hopelessly smitten, madly in love.

(idiomatic) To identify something exactly; to arrive at exactly the right answer.

A type of fish found in the Mediterranean and along the Atlantic coasts of Europe, Sparus aurata.

A screwdriver whose handle and hexagonal head are at right angles.