noun, plural sem·i·week·lies.
Examples from the Web for semi-weekly
During this period, on the first of May, semi-weekly excursions were made from the university, the public being invited to attend.
The semi-weekly stage brought two days later a letter, to Captain Ellison from Snark.Oh, You Tex!|William Macleod Raine
It has 488 postoffices, eighty weekly and fifteen daily newspapers, besides ten semi-weekly and monthly journals.Then and Now|Robert Vaughn
These young men then organized a semi-weekly prayer meeting in the schoolhouse and Frank Higgins led the first meeting.The Lumberjack Sky Pilot|Thomas D. Whittles
The narrow gauge railway has also established a semi-weekly winter schedule.The Lake of the Sky|George Wharton James