In all business writing, including web content, use the same word for the same thing. Be consistent. It's not boring, it's clear.
This is the opposite of the advice we received in school, when we were learning "creative writing". We were told that it's boring to repeat the same word. Be creative! said our teacher. Find a synonym! Use the thesaurus!
But business English is not supposed to be creative! It's supposed to be clear.
Are you providing a workshop, a seminar, a tutorial, a class or a course? Decide, and then use the same word.
Here's an example of what happens if you break this rule. In the following sentences, people may assume that two different events are being discussed:
A workshop on basic HTML will be held at Reddnose High School on 7 July. If you want to attend the beginners' seminar, contact firstname.lastname@example.org.
But which word will you choose? In order of preference:
- the word in the company style guide
- the word you've always used in the past
- the word that seems best after a little bit of research.