There are about ten times as many words ending in -ence than in -ense, so there's one simple rule of thumb to distinguish them: When in doubt, go with -ence. But is there any sort of rule besides memorize the exceptions that captures these -ense words more clearly?
I'm an English language native (Northeast U.S.) and a reasonably good speller, but there are a few of these which trip me up occasionally. While I'm not overly worried about that, I am curious if I'm missing some easy trick.
This is a list of a few of the -ence words and most of the -ense ones, and I don't see anything. Am I missing it?
| -ence (a few) | -ense (almost all) |
|---|---|
| absence | cense |
| affluence | commonsense |
| ambivalence | condense |
| cadence | defense |
| coherence | dense |
| coincidence | dispense |
| commence | expense |
| competence | hypertense |
| confluence | immense |
| credence | incense |
| difference | intense |
| eloquence | lense |
| essence | license |
| fence | multisense |
| frequence | nondefense |
| inference | nonsense |
| licence | offense |
| omnipotence | prepense |
| pence | pretense |
| prominence | propense |
| science | recondense |
| transcendence | relicense |
| transference | sense |
| turbulence | suspense |
| whence | tense |