It does look like china but notice that the 'i' does not appear to be dotted. It could be an 'e' instead. I'm not sure that helps since chena doesn't make any sense either but maybe the other letters are wrong too - sometimes, when a word looks so much like one we are familiar with, it's hard to see anything else. But notice that the 'c' looks different to the others on the document - there's no loop at the top.
The first letter of the last word looks like an 'H' to me. Do you know what her husband did? It's possible this is some kind of reference to his profession. What about other census years? Her death record? What does her profession say on those?
Have a browse over this Victorian Occupations list: http://www.census1891.com/occupations.htm
- maybe something will click.