Alternative
I believe the answer is "sometimes". Another choice would be "frequently".
"bi" means two. bi does not mean two because then why is bicycle there then 8(
Yes, it is a single word. The prefix "bi" means two, and lingual, means "language"
For something to be optional, it means the availability of choice/choices, to have alternatives. The opposite of optional is mandatory, compulsory, required.
or
Word choice means in writing when your using your six traits in a sentence.
Alternative
No, choice is one syllable.
arbitrary
choice
One choice is the word peculiar.
Twice is a word that means two.
Choice may come from the Latin word causīre ("to choose") or Proto-Germanic keusanan ("to choose")
"Dochira" is a Japanese word that means "which one" or "which way." It is often used to ask a choice between two options or to inquire about directions or locations.
One choice is the word ambush.
The Swahili word, mbili means 'two'.