bi weekly
Every one third of a year.
The word double has two syllables. Dou-ble.
Another word for the word answer is reply, response, reaction or retort.
Every is an adjective.
"Twice as much bother" does not have a specific rhyming word pair. Rhyming word pairs typically consist of two words that have the same ending sound, such as "bother" and "brother" or "bother" and "another."
Semiweekly. Some people use biweekly, but this should be reserved for fortnightly, every two weeks. You should also be aware of the word "tertian" which usually means every second day but can also mean every third day.
every other week or fortnightly
A fortnight is a word used to indicate two weeks.
Fortnight
Bimonthly means every two weeks. One can tell by the word monthly which is included in the word bimonthly, giving this clear indication of what is intended.
Fortnight
sshapes
A fortnight is a word used to indicate two weeks.
whole, all, every
Double, twinned, paired
hidden
Sesquifortnightly. Sesqui is a prefix meaning one and a half, like in the word sesquicentennial. A fortnight is two weeks. Every three weeks, therefore, is sesquifortnightly.