Filter short translation

Is there a way to filter the requests for short translations? I think that translating single words (mostly out of context) is a waste of human time: automatic translation gives the same results.

Hence I would like to specify a lower bound in the search form in order to look for more interesting translation.

For now that's not possible. I will think about adding this parameter in the search form.
You made a good remark. I think I should add a warning on the translation request page to tell that for simlpe words, it's better and quicker to use online dictionnaries.