"W-S" is not a word, so it is impossible to provide synonyms for it. However, if you meant "WS," there are several synonyms that could be used depending on the context. If "WS" stands for "web service," synonyms could include online service, internet service, or digital service. If "WS" stands for "workshop," then synonyms could include training sessions, study groups, or seminars. In other contexts, "WS" may not have any synonyms at all. It's important to consider context when attempting to find synonyms, as different words can have different meanings depending on the situation.