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

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

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

Hopelessly smitten, madly in love.

(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).

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

A small gull, Chroicocephalus ridibundus, which breeds in much of Europe and Asia, and also in coastal eastern Canada.

(idiomatic) A compensation for capturing or killing a person, especially someone guilty of a crime.

A bolt with a hexagonal head.

A screw with a hexagonal head.