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r formal [foirmal] adj.
If something is formal, it is done in an official way.
-»It was a formal dinner, so we wore our best clothes.

s
t

a
]
r height [h n.
Height is how tall someone or something is.
-+My height is 168 centimeters.

r invent [invent] v.
To invent something is to create something that never existed before.

-*■My grandfather has invented some interesting things.
r junior [d3uinjar] adj.
If someone is junior in their job, they do not have a lot of power.
-» When she started at the company, she was only a junior manager.

r labor [leibar] n.
Labor is the act of doing or making something.
-* Building the house took a lot of labor.

c mechanic [makaenik] n.
A mechanic is someone who fixes vehicles or machines.
-» We took the car to the mechanic to be fixed.

r prime [praimj adj.
If something is prime, it is the most important one.
-»Dirty air is a prime cause of illness.

i
j
r shift [f*
t
]

To shift to something is to move into a new place or direction.
-» He shifted to the other side of the table to eat his breakfast.
r signal [signal] n.
A signal is a sound or action that tells someone to do something.

-►The coach blew his whistle as a signal to begin the game.
C S in c e r e [sinsiar] adj.
When people are sincere, they tell the truth.
He sounded sincere when he apologized to me.

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