tehokas

Adjective

 * 1) powerful, potent
 * 2) efficient
 * 3) effective

Usage notes
This word is used for both effective and efficient; there is no distinction and it must be expressed through other means if necessary. In addition to using tehokas for both, effective could be translated as, , or , while efficient may be described with terms like  and. Due to the number of synonyms for "effective", it is slowly becoming increasingly common to use itself for "efficient" specifically, but this is still relatively uncommon.