Plurals

Q. I’ve polled all the editors in the building on this, plus checked your manual. Other than rewriting the sentence entirely so it wouldn’t matter if we had “is” or “are,” no one is quite sure how to handle it. I hope you can help, wish this were a chat room. :) Is a term like “award(s)” plural or singular? To me, since the reader will “read” it as plural, it should be plural, but that’s the advertising copy editor in me. As for grammatical correctness, I don’t really know if it’s a plural word or not, since technically the “s” is only inferred, right?

Q. My boyfriend and I are having a battle royal over the use of apostrophes in plural names. In his PhD dissertation he repeatedly refers to a family by the name of Wallace. When he refers to them in the plural, he insists that the correct form is “the Wallace’s,” which seems entirely incorrect to me. I hold that it should be “the Wallaces,” just like “the McDonalds” or “the McPartlands” or “the DeVitos.” He is backing up his position with the example “the G.I.s,” which he insists should be pluralized as “the G.I.’s.” Please help. This is ruining our dinner conversation!

Q. Greetings from New Zealand. May I please ask you what is the plural of “thesis” and whether this word is of Latin or Greek origin? Many thanks.