What word can go after box, side and street?

I can travel from there to here by disappearing, and here to there by reappearing. What am I?

Latest riddles:

Riddle: What word can go before binder, fence and worm?

What word can go before binder, fence and worm?

Riddle: While masons often call me home, you'll likely think me wood and not stone. What am I?

While masons often call me home, you’ll likely think me wood and not stone. What am I?

Riddle: What word can go before ahead, rope and suit?

What word can go before ahead, rope and suit?

Riddle: What kind of animal will pester you?

What kind of animal will pester you?

Riddle: What kind of fish chases a mouse?

What kind of fish chases a mouse?

Riddle: How do you turn six into nine without adding anything or rotating it?

How do you turn six into nine without adding anything or rotating it?