To write is to put pen to paper or fingers to keyboard. If you have trouble falling asleep, write down all the thoughts swimming around your head before getting into bed as a way to clear your mind.
Write is the modern day spelling of the Old English writan, meaning “to score, outline, draw the figure of.” Now it has the sense of “to set down in writing.” You can write music, a short story, or computer code. You can write a letter, or write in cursive. You can write up an account of a burglary, or write down your feelings in a journal. Write on!