If someone sends a tweet with your username in it, then that is an "@reply" to you.
You can view these by clicking on the @username (replaced with your actual username) on the right hand side sidebar on your homepage.
'tweets' in french is 'gazouillement'.
You will receive tweets on your homepage from everyone you follow. Unfollow them to not receive their tweets. To stop people seeing your tweets (except from those you approve) you can protect your tweets from the settings menu.
It will tell you underneath the retweet.
Indigenous Tweets was created in 2011.
All tweets can delete. You only have the ability to delete your own tweets.
Breaking Tweets was created in 2009-01.
If you protect your updates, the people who follow you CAN see your tweets, but ONLY the people who follow you.
If your account is protected then your tweets can't be retweeted.
You can't actually include pictures in your tweets. However, you can use TwitPic to upload your pictures which then tweets the link on your Twitter.
If you go onto your profile, under your name on the left hand side there is a tweets counter. You can click this and this shows the tweets
If you follow Justin Bieber, his tweets will appear in your feed automatically when he posts them. If you want to only see his tweets, you can create a list where he is the only person you add to the list. This will create a timeline of only his tweets.
Twitter: Trinador (The web site is called the same way: Twitter). Tweets: Trinos (In Internet are used both "tweets" and "trinos").