Page:U.S. Government Printing Office Style Manual 2008.djvu/104

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 * under secretaries
 * vice chairmen
 * men employees
 * secretaries-treasurers
 * women aviators


 * Both words equally significant:
 * Bulletins Nos. 27 and 28 not Bulletin Nos. 27 and 28 but Bulletin No. 27 or 28
 * coats of arms
 * masters at arms
 * men buyers


 * No word significant in itself:
 * forget-me-nots
 * hand-me-downs
 * jack-in-the-pulpits
 * man-of-the-earths
 * pick-me-ups
 * will-o'-the-wisps


 * addendum, addenda
 * adieu, adieus
 * agendum, agenda
 * alga, algae
 * alumnus, alumni (masc); alumna, alumnae (fern.)
 * antenna, antennas (antennae, zoology)
 * appendix, appendixes
 * aquarium, aquariums
 * automaton, automatons
 * axis, axes
 * bandeau, bandeaux
 * basis, bases
 * bateau, bateaux
 * beau, beaus
 * cactus, cactuses
 * calix, calices
 * cargo, cargoes
 * chassis (singular and plural)
 * cherub, cherubs
 * cicatrix, cicatrices
 * Co., Cos.
 * coccus, cocci
 * consortium, consortia
 * corrigendum, corrigenda
 * crisis, crises
 * criterion, criteria
 * curriculum, curriculums
 * datum (singular), data (plural, but singular in collective sense)
 * desideratum, desiderata
 * dilettante, dilettanti
 * dogma, dogmas
 * ellipsis, ellipses
 * equilibrium, equilibriums (equilibria, scientific)
 * erratum, errata
 * executrix, executrices
 * flambeau, flambeaus