The word "Leffler" is spelled with a double "f" and a single "l". The IPA phonetic transcription for this word is /ˈlɛflər/. The first syllable is pronounced as "lef" with a short "e" sound, followed by the double "f" which is pronounced as a voiced labiodental fricative (/v/). The second syllable is pronounced with a short "uh" sound followed by a single "l" which is pronounced softly. This spelling is commonly used as a surname in English-speaking countries.
There is no known dictionary definition for the term "leffler." It appears that "leffler" does not have a widely recognized meaning in the English language. It is important to note that the lack of a dictionary definition for a specific term suggests that it might be a made-up or uncommon term. It is possible that "leffler" is a proper noun, such as a surname, a name of a person or a specific reference, which would uniquely associate it with an individual or a specific context. Therefore, the meaning of "leffler" is difficult to ascertain without additional information or context. If this term is related to a particular subject or field, it may be necessary to consult specific resources or experts in that area to understand its meaning. Without further information, it is challenging to provide an accurate definition for "leffler."