Most dictionaries will tell you many things about a language.Generally speaking，a dictionary tells you the important things：spelling，pronunciation，and meaning.
    The first thing，a dictionary will tell you the spelling of a word.If you are not sure about the spelling of a word，you can try to find the correct spelling in a dictionary.The words are always given in alphabetical（字母顺序）order in a dictionary -a，b，c，d，e，f，g，and so on.For example，on a dictionary page the word "secret"-s，e，c，r，e，t-comes before "sentence"-s，e，n，t，e，n，c，e.And the word "sentence" comes before "speed" -s，p，e，e，d.If you know this，you can find a word that you want to know in a dictionary easily and quickly.The second thing，a dictionary will tell you pronunciation.Almost all dictionaries give phonetic transcriptions（ 音标）.It can tell you how a word is pronounced.There are a few different phonetic transcriptions.Many dictionaries use the International Phonetic Alphabet to show the pronunciation.
    The third thing，a dictionary will tell you the meaning of a word.You can look up a word and find out what it means in the dictionary.Many words have more than one meaning，and a good dictionary will tell you all of the words' meaning.For example，in English，the common word "get" has over 20 different meanings.

The function（功能）of a（1） dictionary dictionary
Spelling	A dictionary lists words in alphabetical order. It's（2） easy easy and quick to find a word in a dictionary.
（3） Pronunciation Pronunciation	You can find the pronunciation of a word in the dictionary.
Meaning	You can find out what a word（4） means means in the dictionary. Many words have more than one meaning. There are（5） many many important things that a dictionary tells you.