Läbivaheks

Läbivaheks is a term used in Estonian to describe a specific type of interdental consonant sound. It refers to a consonant produced by placing the tongue tip against or near the back of the upper front teeth, or just behind them on the alveolar ridge, and then allowing air to flow through the narrow gap. This creates a friction sound as the air passes.

In Estonian phonetics, läbivaheks typically applies to fricative consonants. These are sounds where the airflow is constricted, causing audible turbulence or friction. Common examples of sounds that can be produced with a läbivaheks articulation include [f], [v], [s], and [z]. The precise location and degree of constriction can vary slightly, influencing the exact sound produced.

The concept of läbivaheks is important for understanding the phonological system of Estonian and distinguishing it from other languages. It highlights the precise articulation required for certain sounds, differentiating them from plosives (where airflow is completely stopped and released) or nasals (where air passes through the nose). Studying läbivaheks aids in accurate pronunciation and language learning.