Many words are about things.
If we can see, smell, touch and do these things, we use content words .
Nouns, Verbs, Adjectives and Adverbs are content words.
N, VB, ADJ and ADV are important words, so we make them easy to hear.
N, VB, ADJ and ADV are LONG (Loooooong), LOUD (LOUD) and HEAVY (heavy).
Some words are NOT about things. These are not N, VB, ADJ and ADV.
These words are function words. Function words are not very important,
so we do not make them easy to hear.
In this sentence, the content words are in BIG letters,
the function words are in small letters.
Give me some money. My sister is hungry.
