Arrange the following words as per their order in an English dictionary and choose the one that comes first.
Voyages, Voucher, Volunteer, Voltmeter

To arrange the words in alphabetical order, we compare them letter by letter:
1. All words start with 'Vo'.
2. Comparing the third letter:
* Voltmeter ('l')
* Volunteer ('l')
* Voucher ('u')
* Voyages ('y')

3. Since 'l' comes before 'u' and 'y', we compare 'Voltmeter' and 'Volunteer' by their fourth letter:
* Voltmeter ('t')
* Volunteer ('u')

4. Since 't' comes before 'u', Voltmeter comes first.

The correct alphabetical order is: Voltmeter $\to$ Volunteer $\to$ Voucher $\to$ Voyages.