Synonyms for Season:

n.

go up, opposite, in, on, dark, rep, dramatic, method acting, acting. aerate, bonsai, compost, cross-fertilize, deadhead, bed out, stretch, feed, cross-pollinate, drill. guide, agritourism, rut, high season, courier, gondolier, heat, guidebook, ecotourism, attraction, beauty spot, estrus, heritage center. blood sports, cast, angling, big game, bait, capture, bag, bite. arbor day, bank holiday, Columbus Day, festival, independence day, the Fourth of July, Canada Day, Australia Day, holiday, ANZAC Day. breeding, courtship, breeding ground, couple, breed, fecund, breeder, fertile, asexual reproduction. equinox, midwinter, midsummer, midsummer day, autumnal, British Summer Time, daylight-saving time, the midnight sun, autumn. bake, beat, blanch, blend, butcher, chill, carve, butter, bone, butchery. countdown, delay, chapter, block, day, distance. bye, card, challenge, championship, contest, the Commonwealth Games, close season, cup, clash, crown. knotty, preserve, mortice, mortise, dovetail, sand, joinery, sawdust, carpentry. duration (noun)
course, span, time, date, measure, age, aeon, epoch, duration, interim, spell, era, interval, cycle.
life (noun)
era.
period (noun)
spring, summer, division, fall, winter, certain months of the year, a while.
season (noun)
harden, temper, flavour, flavor, mollify, time of year.
spell (noun)
spell.
time of year governed by annual equinoxes (noun)
interval, summer, spell, spring, division, time, fall, winter, autumn.

v.

acclimatize, prepare (verb)
mature, harden, temper.
age (verb)
endure, mellow, last, mature, deteriorate, ripen, develop, grow old, decline.
change (verb)
harden.

Other synonyms:

joinery, sawdust, estrus, carpentry, mortise. knotty, dovetail, spring. preserve, sand. heat. harden
harden.
Other relevant words:
dovetail, day, harden, joinery, stretch, heat, division, spring, carpentry, preserve, chapter, flavour, fall, mollify, rut, temper, time of year, summer, autumn, blend, flavor, winter, estrus.