What makes "knight" and "night" different?
Say "knight" out loud, then say "night." You'll hear the same sound both times.
In conversation, that's no problem. Nobody can hear the spelling. But the moment you write one of them down, you need to know which is which.
If you speak German, these spellings make more sense than you think.
A knight is a soldier from the Middle Ages, usually on horseback and wearing armor. Today the word mostly lives in stories, films, and a few fixed expressions.

You might wonder why there's a K at the start. It wasn't always silent. "Knight" comes from the same old word as the German Knecht, and hundreds of years ago English speakers pronounced that K, just like you do in Knecht. Over time the sound faded, but the spelling stayed. The same thing happened with knee (Knie), know, and knife.
Night is the dark part of the day, between sunset and sunrise. You probably use it every day:

The "gh" has a similar backstory. Look at the German Nacht. That "ch" sound used to exist in English too, and "gh" is how English wrote it. The sound disappeared, but the letters stayed. You'll find the same silent "gh" in light (Licht) and right (recht).
If you want to practise both in one sentence, try this: The knight couldn't sleep the night before the battle.
Another thing to watch out for: you'll sometimes see "nite" on signs and in text messages, like "Friday Nite Special." It's fine for a quick message to a friend. Keep it out of emails, reports, and anything professional.
Want more short lessons like this? Head over to Daily Dose of Denglisch Docs.
We are committed to equity,
diversity, and inclusion.
We welcome students,
educators, users, researchers,
and employees from a diverse
set of backgrounds.
Our own backgrounds vary in
terms of socioeconomic status,
religion, race, ethnicity,
gender
identity, sexual orientation,
age, neurodiversity,
disability,
and nationality.
In short: Be you. Do you.
We love and embrace
what makes you you.
Thank you for inviting us to assess
your web copy!
One of our copy analysts will take
a close look at your website and
get back to you right away.
We appreciate your trust.