Englishfor English speakers
the
Determiner
—
Used, instead of a, to reference something specific, already known to exist.
Compare "I read a book." and "I read the book."
—
Used with a stress, to show that the word following is special.
Are you the John Smith that I went to school with?
—
Used with an adjective that acts like a noun to mean all of the people concerned
The poor are always with us.
—
Used with superlatives forms of adjectives and adverbs.
You are the best.
battery
Noun
—
A battery is a coordinated group of artillery weapons.
is
Verb
—
A form of the verb be when talking about someone or something else.
He is late for class.
Is it hot in here?
low
Adjective
—
If cost, value, amount, sound, temperature, etc. is low, it is small.
My pay is very low, so it's hard to live here.
Poor people need low-cost apartments.
The temperature will go down over night and tomorrow it will be lower than it was today.
—
If something is low, it (or its top) is close to the ground.
The bridge is too low for the truck to go under it.
—
If something is low quality, it is bad.
I bought a low-quality bag and it already has a hole in it.
—
If a sound is low, it is small in frequency or quiet.
On the piano, the left hand plays the low notes and the right hand plays the high notes.
—
If a person is feeling low, they are not happy.