Yes. (There are other phrases too that should be red flags such as "strategizing", but "synergy" is probably the poster child).

>other phrases

"Pipeline". I hate this so much. At a previous job, it was used so much by management it became a meme on the production floor. When asked how many units had been sold, there was always a big number in the pipeline, when the real actual number was zero.

It's a non-commitment word. Whatever is talked about may or may not happen or exist. Maybe it's ignorance or a straight up lie to shut up the people on the floor, but "pipeline" works maybe once or twice and then everyone is onto your bullshit.