Require and Snarl-up

Require verb - To have as a requirement.

Snarl-up and require are semantically related. In some cases you can replace phrase "Snarl-up" with "Require", this terms are similar.

Snarl-up noun - A number of vehicles blocking one another until they can scarcely move.

Require and snarl-up are semantically related. Sometimes you can use "Require" instead a verb phrase "Snarl-up".