Englishfor English speakers
conductivity
—
noun
(= conduction)
the transmission of heat or electricity or sound
of
Preposition
—
Made using.
It is a house of cards.
rock
Noun
—
A hard substance that forms naturally in the Earth's surface.
—
A form of music often played with guitars and drums.
rock
Verb
—
To shake back and forth.
The boat rocked in the strong wind.