Isn't Allah described in the Quran as 'One of' rather than simply 'One'?

The Quran's Surah Al-Ikhlas states that Allah is 'One', but some argue that the Arabic word 'ahad' implies a different meaning, suggesting that Allah is merely 'one of' many. However, this interpretation overlooks the theological significance of the term in Islamic tradition, where 'ahad' is understood to denote uniqueness and indivisibility. In contrast, the Christian doctrine of the Trinity affirms that God is one in essence but exists in three persons: the Father, the Son, and the Holy Spirit. This distinction is crucial as it highlights the relational aspect of God's nature, which is absent in the Islamic conception of Allah. Furthermore, the Bible consistently emphasizes the oneness of God, as seen in verses like Deuteronomy 6:4, which states, 'Hear, O Israel: The Lord our God, the Lord is one.' This reinforces the Christian understanding of God's singularity without implying a multiplicity of deities.