The best replacement for bases is basis.

The best alternatives to bases are rated as following:
★★★★★  basis
★★★★  acids
★  touch basis
★  alkalis
★  nucleophiles
★  rna
★  strong nucleophiles
  picatinny
  good nucleophiles
  strong acids
  daily basis
  nucleotides
  touch base
  weak bases
  stolen bases
  standard bases
  pans
  open bases
  bistro tables
  base
  strong
  acids more dangerous
  strong bases
  power tactics

Your alternative for bases is not listed? Suggest!
Speaking about bases, one probably shouldn't forget about negative exponents.

Other search terms related to bases and their ratings are:
★★★★★ negative exponents
★★★ seats
★★ fractional exponents
★★ exponents
You have in mind a companion for bases and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of bases in all years. Click on graph for more.
bases
basis
acids