Sisters

little sister

You talk about your little sister a lot.

Your 'little sister' is a sister who is younger than you.  Notice the following:

1. My little sister will be 18 years old next month.
   
2. It was fun to grow up with a little sister.
   

close

My sister and I are close, and we see each other often.

In this case 'close' means something like friendly or intimate.  If you are close to someone they know about your life and your problems.  You feel comfortable with that person.  Notice the following:

1. She is very close to her mother.
   
2. We became really close after the business trip.
   

look like

People say we don't look like each other.

When you 'look like' someone you have similar features to that person.  Notice the following:

1. My sister and I don't look alike at all.
   
2. Everyone says my son looks like his father.
   

letters

We don't give birthday gifts, but we give each other letters on normal days.

A 'letter' is something that you write on paper and then send to communicate with someone and tell them what is going on in your life.  Letters are not as common now because most people communicate through e-mail because it is much faster.  Notice the following:

1. I think it's fun to receive letters.
   
2. My parents saved all the letters from when they were first dating.
   

in contact with

Are you in contact with each other every day?

If you are 'in contact with' someone you communicate with them regularly or just know how to communicate with them if you want to.  Notice the following:

1. I'm not really in contact with him anymore.
   
2. Are you still in contact with your college friends?