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arXiv · 2601.03403

Tigrinya Number Verbalization: Rules, Algorithm, and Implementation

Fitsum Gaim·Issayas Tesfamariam
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Abstract

We present a systematic formalization of Tigrinya cardinal and ordinal number verbalization, addressing a gap in computational resources for the language. This work documents the canonical rules governing the expression of numerical values in spoken Tigrinya, including the conjunction system, scale words, and special cases for dates, times, and currency. We provide a formal algorithm for number-to-word conversion and release an open-source implementation. Evaluation of frontier large language models (LLMs) reveals significant gaps in their ability to accurately verbalize Tigrinya numbers, underscoring the need for explicit rule documentation. This work serves language modeling, speech synthesis, and accessibility applications targeting Tigrinya-speaking communities.

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Fitsum Gaim, Issayas Tesfamariam. 2026-01-06. Tigrinya Number Verbalization: Rules, Algorithm, and Implementation. https://arxiv.org/abs/2601.03403

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