This article is from the Puzzles FAQ, by Chris Cole chris@questrel.questrel.com and Matthew Daly mwdaly@pobox.com with numerous contributions by others.
Two words, spelled and pronounced differently, have plurals spelled
the same but pronounced differently.
language/english/plurals/collision.s
axe and axis -> axes
base and basis -> bases
ellipse and ellipsis -> ellipses
 
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