Daily Worker Cancel Title is required

Daily worker is listed as the occupation of the father of one of my sponsored children.  What exactly is a daily worker?  Does anyone know?  Thanks

I have daily worker on one of my family reports too. I think what it means is that the jobs vary based on what is needed and what type of work is available each day. 

Thanks!  I was curious because one father is a driver and he makes about $80 a month, but this other father "daily worker" makes $181 per month.  I guess they have a better chance at making more as a daily worker.  Now I'm even more curious as to what other jobs are available for these families and what it's like to find a job over there.