Words similar to firstly

Example sentences for: firstly

How can you use “firstly” in a sentence? Here are some example sentences to help you improve your vocabulary:

Firstly, because with $10 worth of stamps and a pen pal I could make it circle the globe another nine times all by myself.
Firstly, Go and others [ 5 6 ] showed that mefloquine alters calcium flux into and out of isolated mammalian microsomes obtained from skeletal muscle and neuronal tissue.
Firstly, its human U95 series chip consists of 5 chip types with 12,000 coding clusters each, which makes it expensive to profile all the human genes in samples of interest.
Firstly, Capron and Reis [2] misunderstood our quantitative analyses.
Firstly, it's ridiculous to spend $120 (or any amount) on a service contract for one of these devices.