Interesting statistic from yesterday's 7-by many
ballistics - one of the four common seed-words managed only 37 hits.
ballistic, on the other hand, without the s, managed 300.
There is a list of 'permitted 's' words' which Alan produced some time ago; obviously at that time 10-letter words such as ballistics were not playable in any Chi-game, and consequently were not included on the 'list of 127' -
Chihuahua currently accepts 127 words that can be formed by adding S to the end of another acceptable word. This list excludes words ending in SS, like assess.
In only 16 of these cases are both "singular" and "plural" words classed as common:
blues, briefs, clothes, craps, goods, maths, mores, outskirts, pants, passes, shingles, shorts, theirs, theses, tongs, yours
In most cases, the shorter word is rare and the one with the S at the end is common:
always, asses, baldies, basses, billies, caddies, candies, champers, chaos, conches, cosies, couches, cripes, crises, crosses, crudites, curries, doldrums, empresses, environs, fantasies, fesses, finis, fogies, galoshes, genus, glutes, grannies, heroes, honkies, hooves, huskies, hustings, jeans, knickers, knives, kudos, lefties, lenses, loaves, masses, matins, matrices, measles, menses, methinks, midwives, mommies, monies, musses, nannies, nappies, nixes, obsequies, overseas, pampas, panties, patties, penis, pinnies, pliers, plies, prognoses, relies, sasses, sheaves, sideburns, sideways, species, spies, sties, tapas, tatters, teddies, testes, tries, upstairs, vespers, wharves, wolves