Englishfor English speakers
seven
Determiner
—
(ordinal seventh) The number 7.
There are seven days in one week.
seven
Noun
—
The number 7.
arm
Noun
—
One of the upper limbs people have; arms start at the shoulder and go down to the wrist, sometimes the hand is included.
—
A weapon.
arm
Verb
—
To give or sell weapons to a person, group, or country.
Our taxes pay to arm the military.
—
To get a tool or a weapon ready for action; to activate.
Remember to arm the alarm system.
octopus
Noun
—
An octopus is an animal (a mollusc) that has eight arms.
I saw an octopus in the sea.