This is true; “love” is an English word, but just a word, not a sentence, for example. It begins with “L” and has four letters and appears in the dictionary between “lousy” and “low-browed,” which are also just words. “Cheeseburger” is just a word. “Word” is just a word.
But this isn’t fair, you say. Whoever said that love is just a word meant something else, surely. No doubt, but they didn’t say it. Maybe they meant that “love” is a word that misleads people into thinking that it is the term for something wonderful that doesn’t really exist at all, like “unicorn,” or maybe they meant that the word was so vague that nobody could ever know whether it referred to any particular thing or relation or event. But neither of these claims is actually very plausible. “Love” may be a troublesome, hard-to-define word, and love may be a hard-to-be-sure-about state, but those claims are obvious, not particularly informative or profound.
Not all deepities are quite so easily analyzed. Richard Dawkins recently alerted me to a fine deepity by Rowan Williams, the Archbishop of Canterbury, who described his faith as a
silent waiting on the truth, pure sitting and breathing in the presence of the question mark.
I leave the analysis of this as an exercise for you