An important concept in the French language is that of liaison between words.  The concept is simple enough to understand, but takes some practice to get into.

Suppose you have a series of words comprising a sentence.  If the trailing consonant of a word is silent then that consonant is used to begin the next word, in essence being transferred to the next word.

For example, the phrase les amis (the friends) is pronounced "lay zami."  The otherwise silent soft s at the end of les was used to start amis. Consider also mon amis (my friends), pronounced "mo nami".

In the French language consonants at the end of words are usually silent.  When a silent consonant is followed by a vowel, a liaison often takes place.  (The word liaison means linking.)

Other closely related concepts are those of enchaînement and elision.  With enchaînement the consonant is carried to the next word, as with liaison, but also usually pronounced even if the following word doesn't begin with a vowel.  With elision two vowel sounds are pronounced, one at the end of a word, the other at the start of the next word.