Final answer:
The word that matches the word 'virtually' in meaning is 'almost'.
Step-by-step explanation:
The word that matches the word 'virtually' in meaning is almost. 'Virtually' means nearly or practically, and 'almost' has a similar meaning. For example, if someone says 'I virtually finished all my homework,' it means they almost completed all of it.
'Essentially' means fundamentally or primarily, it is not the closest match. 'Effectively' means in a way that produces a desired or intended result, it is not the closest match. 'Practically' means in a practical manner or practically speaking, it is a close match to 'virtually'.