year

[aperiod of time equal to twelve months]

We signed awork agreement for one year.

yellow

[having the color like that of gold or the sun]

The skin of bananas is yellow.

yes

[used to express agreement or to permit]

When he asked her to marry him,she said,"Yes."　

yesterday

[the day before to day]

We talked yesterday about her problem.

yet [(1)at sometime before now;(2)now;(3)at this time;(4)however]

Have they arrived yet?(1)

Do not sitd own yet.(2)

I can not tell you about it yet.(3)

The sun was shining,yet it was cold.(4)

you 

 [the person or persons being spoken to]

I am glad to see you.

young

[(1) in the early years of life;(2)not old]

The young girl missed her mother.(1)

He seemed too young to know so much.(2)