With is one of the most useful small words in English. It shows connection or accompaniment: when you go to the park with your friend, you go together. When you eat pizza with pepperoni, the pepperoni is on it.

The word takes on different shades of meaning depending on the situation. If you write with a pencil, you're using it as your tool. If you agree with someone, you share their opinion. If you're satisfied with your work, you feel good about it. When you fight with your brother, you're opposing each other, but when you play with him, you're cooperating.

With can also describe having something: a house with a big yard, a student with excellent grades, or a dog with brown spots. Sometimes it shows how something happens: singing with enthusiasm, speaking with confidence, or working with determination.

You'll find with everywhere in English, connecting ideas, people, and things in countless ways. Despite being just four letters long, it's one of the hardest words for people learning English because it works differently in different contexts. But once you understand its flexible nature, you can use it to express almost any kind of connection or relationship between things.