I frequently use then where I might should use than.
For example. My previous question was self-titled:
Is pretty nice nicer then nice?
And was edited to:
Is pretty nice nicer than nice?
Have not thought of it before other that it sounds OK and hence used it. Looking up the definition at for example Google I get:
- at that time; at the time in question.
- after that; next; afterwards.
Where neither fits as far as I can see, (perhaps 1.). Is it completely wrong to use then in this context?
Look in the dictionary. OK, accept that, but:
Have a look at for example:
- Cambridge example adverb, then
- We have a town house, a country cottage, and then there's our villa in Spain.
- Common Errors in English Usage, as in it is common?
- Number of hits on web-search, e.g. Google, and their content
The amount of effort by numerous people and sources on the subject might suggest the issue is not that obvious in every case. This can obviously be interpreted in several ways in regards to causation.
The example from Cambridge is for instance one that throw me off a bit. (And similar cases might subconsciously have brought me to the dilemma I sometimes face when choosing between the two.)
But; hope I am on the right track now. Then is better used than than both when and then.