Suppose we wish to describe someone's speed. Consider three teaching examples:
1. “He ran and caught his companion in a very short time” — exceptional yet possible speed, tending toward tablīgh.
2. “He arrived so quickly that no ordinary rider could match him” — potentially ighrāq if the stated distance and time exceed normal means.
3. “He reached the destination before he had even set off” — ghulūw if taken as contradictory temporal claims in the same respect.
Without the full context, one should be cautious about assigning a rigid category to an ambiguous sentence.