What does this road sign mean?

Question

When arriving to a stop sign, you must always come to a complete stop and proceed only when it is safe to do so.

Accepted Answer

Come to a full stop, then proceed if it is safe to do so.

Answer

Slow down and prepare to stop.

Answer

Proceed carefully through the intersection, but you may not always need to stop.

Answer

Stop only for traffic on an intersecting road.