tehokkaille
Tehokkaille is a Finnish form that appears to be a nonstandard inflected variant of the adjective tehokas, which means efficient or effective. In standard Finnish, however, this word is not treated as a separate lexical item; it is understood as a grammatical form of the adjective used with a noun in allative case and plural, indicating recipients or targets of an action.
In Finnish grammar, adjectives agree with the nouns they modify in number and case. The allative plural
Because Finnish relies on case endings rather than fixed word order to convey meaning, the precise form
In summary, tehokkaille is not recognized as a canonical entry in Finnish dictionaries; it is typically treated
See also: Finnish grammar, Adjectives in Finnish, Allative case.