A, a
/eɪ/ /æ/ /ə/
Etymology
From Middle English a, from Old English a, from Proto-Germanic *ainaz. Historically derived from the Phoenician letter 𐤀 (ʾālep, “ox”), via the Greek letter Α (Alpha).
Senses & Contexts
The first letter of the English alphabet, written in the Latin script.
The highest rank or grade assigned by a teacher, denoting excellent performance.
A musical note, the sixth in the scale of C major (standardly tuned to 440Hz).
A blood type in the ABO system, characterized by the presence of the A antigen.
Oracle Synthesis
The context string "A" functions primarily as a foundational starting point across disciplines—the first letter, the highest grade, the base tuning pitch, and the primary blood group. Its morphological root as an "ox head" implies leadership and primary strength.