Targeted keywords for landing pages but keyword has a lot of synonyms, how is the best way to approach this?

[Deacyde]

I'm trying to target one page for one broad 2 word keyword, however, because our niche revolves around this keyword and it's synonyms, the keyword is used on every other page, thus creating the issue of non-targeted pages taking the rank instead of targeted page.

I've thought of using synonyms on each page, so that no one page uses the same keyword, but felt this could be seen as spammy or could just hurt overall relevancy towards the main keyword, thus a loss of rank.

I understand page authority also plays a part, but also seems that every page other than the page I want get's targeted.

[MattRoney]

Personally, I'd say your best bet is to build relevant, high-quality links to that page. That'll be a stronger signal than simply focusing on on-page keyword usage, anyway.