remember to lock the door

Meaning

This expression is used to remind someone (or oneself) to secure an entrance using a key or lock before leaving or going to sleep. It is a very common household instruction used for safety and security. The tone is helpful, protective, or sometimes a routine warning.

Examples

• Please remember to lock the door when you leave the house.

  Please remember to lock the door when you leave the house.

• I always remember to lock the door, but today I completely forgot.

  I always remember to lock the door, but today I completely forgot.

• Did you remember to lock the door before we got in the car?

  Did you remember to lock the door before we got in the car?

• She left a sticky note on the fridge saying, "Remember to lock the door!"

  She left a sticky note on the fridge saying, "Remember to lock the door!"

• It is safe here, but you should still remember to lock the door at night.

  It is safe here, but you should still remember to lock the door at night.

Common Mistakes

• ✗ Remember locking the door when you leave.

  ✓ Remember to lock the door when you leave.

  "Remember + gerund (-ing)" means recalling a past memory. "Remember + infinitive (to do)" must be used here because it refers to a future action or duty that should not be forgotten.

• ✗ Remember to block the door.

  ✓ Remember to lock the door.

  "Block" means to obstruct or close off a path physically, while "lock" means to secure a door with a key or deadbolt.

Related Expressions

Practice

• Before you go to bed, please ___.

  💡 A safety reminder about securing the entrance.

  Show answer

  remember to lock the door

• I had to walk back to the house because I couldn't recall if I did ___.

  💡 Ensuring the entrance is secured with a key.

  Show answer

  remember to lock the door