hour|ly1 [ `aurli ] adjective
1. ) happening once every hour:
hourly news bulletins
2. ) usually before noun relating to one hour of work:
His hourly fee is $75.
We charge clients on an hourly basis.
hour|ly 2 [ `aurli ] adverb
1. ) once every hour:
Buses run hourly.
2. ) someone who is paid hourly is paid an amount of money for each hour of work
3. ) often or all the time:
The situation is changing hourly.

Usage of the words and phrases in modern English. 2013.