klucz — meaning in English

English meaning

clef noun A symbol placed at the start of a musical staff that shows which pitches the lines and spaces represent.
key noun A shaped piece of metal used to open or lock a particular lock.
keystone noun The central wedge-shaped stone at the top of an arch that locks the other stones in place.
radical adjective Favoring extreme, fundamental change, especially in politics or society.
spanner noun A hand tool used to grip and turn nuts and bolts (called a "wrench" in American English).
wedge noun A piece of material, thick at one end and tapering to a thin edge, used to split, tighten, or lever things apart.

klucz is used for these senses in English:

clef (music) A symbol found on a musical staff that indicates the pitches represented by the lines and the spaces on the staff [from Template:SAFESUBST: c.]
key Indispensable, supremely important.
key Important, salient.
key A small guide explaining symbols or terminology, especially the legend on a map or chart.
key In instruments with a keyboard such as an organ or piano, one of the levers, or especially the exposed front end of it, which are depressed to cause a particular sound or note to be produced.
key (music) A scale or group of pitches constituting the basis of a musical composition.
keystone (architecture) The top stone of an arch.
radical (linguistics) In logographic writing systems such as the Chinese writing system, the portion of a character (if any) that provides an indication of its meaning, as opposed to phonetic.

noun A shaped piece of metal used to open or lock a particular lock.
noun The single most important factor or step needed to achieve something.
noun One of the buttons pressed to type on a keyboard or play a musical instrument.
noun A short guide listing what the symbols, colours, or abbreviations on a map, chart, or test mean.
noun In music, the set of related notes a piece is built around, giving it its overall tonal centre.