Compatible word and browser for old iBook G4 - Texas Storms

I only have an Apple iBook G4 2005-2006, basic use needs only. No longer able to upgrade past osx10.5.8, can only run HTML version of gmail...need access to icloud, MSword, better browser or suggestions for work arounds. From Texas, no longer have my 2015 Mac Book pro, only have the iBook, while i'm caring for father for long while.....due to storms.