second half of the (fiscal) year
 expectation;  assume will happen;  forecast
 transition, cutover period
 stage of ennui (esp. in one's married life);  period of lassitude;  lethargic period;  rut
 expiration (of a term);  maturity (e.g. investment);  serving one's (full) time
 first term;  first half-year;  preceding period;  early period
 growth period;  growing season
 rebellious phase;  rebellious age
 dawning (of a new era);  dawn
 upturn;  increment phase;  rise period
 same period;  corresponding period;  same year (of graduation, entering a company, etc.);  contemporary;  synchronization;  synchronism
 mating season;  estrus (oestrus);  estrum;  the rut
 middle period;  medium-term
 unexpectedly;  accidentally;  by chance
 half-term;  half-time;  half period
 period of maturity;  adolescence;  puberty
 eclipse period (in viral lifecycle);  eclipse phase;  dark age
 closed season for fishing or hunting
 time of delivery (of a child)
 thawing season;  thaw;  season when the ice melts
 post-term delivery;  postmature delivery
 time;  season;  period;  phase;  stage
 next term;  next period;  next version;  next release
 period of an apprentice's contract (usu. ten years);  apprenticeship;  indentureship;  one-year period
 fixed date;  settlement date
 summer term (e.g. school);  summer period
 time of death;  one's final hour;  one's end
 irregular;  indeterminate;  tramp (steamer)
 period (of life) when one is enjoying more romantic attention than usual
 period (of life) when one is enjoying more romantic attention than usual
 marriageable age;  chance of marriage
 suitable age (esp. for marriage);  marriageable age
 glacial period;  glacial epoch;  glacial era;  tough period;  drought (of opportunities, jobs, etc.)
 stable period (with ref. to pregnancy, typically from 4th month when the placenta is fully formed, morning sickness usually goes away and risk of miscarriage decreases)
 peak period;  pinnacle;  prime;  zenith;  glory days
 second term;  second stage
 turning point;  transition phase
 building time;  construction period
 indefinite;  unlimited;  life imprisonment
 slack season for farmers;  leisure season for farmers
 period when one's voice changes;  (age of) puberty
 period of rapid growth (especially Japan's period of rapid economic growth after WWII)
 prime of one's life;  stage of maturity
 session (of a legislature)
 expected;  anticipated;  hoped for;  expectation
 final stage;  terminal stage
 puberty;  adolescence;  youth
 spawning season;  breeding season;  laying period
 time of great change;  era of reform
 phase of decline;  ebb;  twilight
 initial stages;  first stage;  early period;  pioneer days;  beginning;  outset
 second half of the year;  second half of the fiscal year
 terrible twos (developmental stage in toddlers)
 terrible twos (developmental stage in toddlers)
 definite (period or term)
 off period;  off season;  slack season
 interphase;  interkinesis;  midcycle
 (similar to) perinatal;  period from around the 28th week of pregnancy to a week after the baby is born
 the last half-year;  second half of the year
 the first half-year;  first half of the year
 moulting season;  molting season
 initial stage;  early period
 time of year when television and radio replace programs (usu. spring and fall)
 anthesis;  flowering season
 formative period (e.g. of nation);  formative year
 postpartum period;  postnatal period;  puerperal period;  puerperium
 first half of the (fiscal) year
 whole term;  entire period
 interwar period (1918-1939)
 new season (e.g. of TV programming);  new term
 whole financial year;  full business year
 dry season;  dry spell;  dry period
 period of economic growth
 downturn;  decrement phase
 thawing season;  spring thaw
 (girl's arrival at) puberty
 change of life;  menopause
 sprouting season (of ears of grain)
 staggered terms (applied to corporate directors as a defensive measure against hostile takeovers)
 follicular phase;  proliferative phase (of the estrous or menstrual cycle)
 Chalcolithic period (i.e. the Copper Period)
 occupation period (e.g. post-WWII period during which the Allies occupied Japan)
 sleep onset REM period;  SOREMP
 at times of many visitors;  busy times
 full-term birth;  labor at term (labour);  term delivery
 looking forward to;  anticipating