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semiannual Syllabification: sem·i·an·nu·al
Pronunciation: /ˌsemēˈany(o͞o)əl/

Definition of semiannual in English:


1Occurring twice a year; half-yearly: their semiannual meetings
More example sentences
  • The sentiment seems to be widespread among the bishops who participated in the semi-annual meeting, held this past June in Englewood, a few miles from Denver, Colorado.
  • Holmes will present research on his underwater listening device in Vancouver on May 20 at the semi-annual meeting of the Acoustical Society of America.
  • Keeneland's board of directors resolved to support a national medication policy at its semi-annual meeting on Wednesday.
1.1(Of a plant) living for half a year only.
Example sentences
  • It is fast growing, and can be kept as a container or semiannual plant.


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A semiannual plant.
Example sentences
  • Last fall's Garden Guide was just honored at the Western Publications Association's annual Maggie Awards ceremony in Los Angeles as the best Western publication in the annuals and semiannuals category.
  • In your next entry, please let us know if now is the proper time of the year for planting annuals or semiannuals.
  • Remember, if your basic garden structure doesn't give you enough colour to enjoy, there are plenty of annuals or semiannuals that will!


Example sentences
  • Interest will be paid semi-annually over the ten-year duration of the loan and the principal repaid, after a 42-month principal moratorium in 14 equal semi-annual instalments to 2015.
  • In many markets, the big daily acts like a quasi-monopoly, raising advertising rates annually or semi-annually - anything to reach those historic 30 percent margins.
  • We would expect them to leave the executives to do their job and meet perhaps quarterly or semi-annually.
Definition of semiannual in:
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