Of or off?

The rule

• oflinks things: a part, an amount, a material
• offtakes away: from a surface, or a machine that isn't on

Example 1 of 3

of = an amount

We packed three boxes of handmade cards before sunset.

Of links the boxes to what is inside them.

Tap the sound icon at the top to hear a native speaker.

Example 2 of 3

off = away from

Please take the wooden sign off the wall bracket.

The sign leaves the bracket.

Tap the sound icon at the top to hear a native speaker.

Example 3 of 3

off = not running

Make sure the desk light is off before you lock the room.

The light isn't on. It isn't broken.

Tap the sound icon at the top to hear a native speaker.

Hear the difference

Of sounds like /əv/ with a soft v. Off ends in a clear /f/. With it or them, say turn it off.

Quick check

Answer in your head. Answers next.

1. 1. She wiped the dust ___ the table.
   • A of
   • B off
2. 2. The frame is made ___ silver.
   • A of
   • B off
3. 3. It's loud. Please…
   • A turn off it.
   • B turn it off.

Answers

1. 1. offThe dust leaves the table.
2. 2. ofOf names the material.
3. 3. turn it off.It goes in the middle.