Frequent is another option for the word "often".
How come is often used instead of why.
Often.
One alternative word that can be used instead of "they" is "them."
Cos. is the plural, but more often used is the abbreviation for the word company instead which is Co.
Ontology is a word used when one or more are discussing God or the existence of a God. The word most used instead of this word then be the study or the understanding of God.
The word Colon is often used instead of the term Bowel or Large Intestine.
An alternative word that can be used instead of "we" in an essay is "one" or "individuals."
Stuttering is also called "stammering" but that term is used more often in Europe.
instead of being that
used to be
no "It" is not used instead of he and she...
But may be used - instead of however, in most contexts.