# The difference between “common” and “commonly”

The adjective "common" has the meaning of "shared by". Does the adverb "commonly" have such a meaning?

For example, does the sentence below I created make sense? I am trying to describe that each bulb is supplied with the same voltage of 120 volts.

A voltage of 120 volts is applied commonly to three bulbs. • I'd say evenly between. But 60+60+60 makes 180 and not 120 unless I understood you wrongly. – SovereignSun Dec 5 '17 at 11:48
• @SovereignSun Haha, it's 120 volts, not 120 watts. Nothing is being added. 120 volts are applied to each of the 60 watt bulbs. – farnsy Dec 6 '17 at 4:27
• @farnsy Missed that one. Well, say, "A voltage of 120 volts is applied to each of the three bulbs" – SovereignSun Dec 6 '17 at 4:30
• No dictionary lists this meaning of commonly. – Andrew Dec 11 '17 at 1:54

A proper example of the word `commonly` would be:

``````Lightbulbs commonly burn out after 500 hours of use.
``````

In the example you give, I might use `equally` as in

``````A voltage of 120 volts is applied equally to three bulbs.
``````

or

``````A voltage of 120 volts is equally applied to three bulbs.
``````

The two sentences mean essentially the same thing.