You have your keyword list that tells which words searchers are looking for when they search for your home page or your products, nevertheless you may require some ideas to add flavor and improve conversion. I have collected some words that I anticipate will inspire you.
Internet users don’t notice the similar things following they are repeatedly exposed to them again and again. In online advertising banner blindness is the most branded example. Internet users basically get used to banners that promote something that is not worth their time, therefore they stop detect the banners after some time. The similar thing happens with language that are used to make us do something.
Thus, you have to adjust your action language now and then to keep them working. The problem for most writers is that it is particularly not easy to adjust the language because of old habit.
I have made this list of actions language to facilitate you adjust language now and then to keep making your web copy effect full.
Here are a few examples on how you can vary uniqueness and the use of colloquial words.

Indicating Uniqueness:
matchless, inimitable, first-rate, superlative, second to none, singular, distinguished, beyond compare, unmatched, best quality, unparalleled, exceptional, superb, out of the ordinary, extraordinary, outstanding, superior, distinctive, unrivaled, top quality, the best, the top, elite, incomparable, only one of its kind, unbeatable, exclusive, special, advanced, number 1, without equal, sole, excellent, unique, undisputed, one and only, first-class, peerless, unsurpassed.

A colloquial word is an informal, often entertaining word or phrase used in everyday discussion. When you use colloquial words, you draw your reader closer because you appear more familiar, more up close and personal instead of distant.

Be aware that using colloquial words to much to the wrong market segment can have the opposite effect.

Use colloquial words that are understandable to most people with a reasonable familiarity with English. Here are some examples of normal used colloquial words that have found their way to mainstream online communications:

Colloquial vs. Normal words: glitzy vs. ashionable, blow a fuse vs. lose your temper, laid-back vs. calm and relaxed, has deep pockets vs. has a good source of money, make waves vs. cause trouble, twenty grand vs. $20,000, dough vs. money, megabucks vs. a lot of money, blown away vs. greatly impressed, cool vs. great, honcho vs. boss, bent out of shape vs. become upset, get a kick out of vs. enjoy, bummed vs. depressed, come up for air vs. take a break, defect vs. glitch, con vs. deceive.