am

Reading level: hard

Estimated CEFR level: B2 — Upper-Intermediate

Estimated from word frequency; not an official CEFR classification.

Definition

  1. noun a radioactive transuranic metallic element; discovered by bombarding uranium with helium atoms
  2. noun a master's degree in arts and sciences
  3. noun modulation of the amplitude of the (radio) carrier wave

Etymology

From Middle English am, em, from Old English eam, eom (“am”), from Proto-West Germanic *im, from Proto-Germanic *immi, *izmi (“am”, form of the verb *wesaną (“to be; dwell”)), from Proto-Indo-European *h₁ésmi (“to be, to exist”). Cognate with Old Norse em (Old Swedish æm (“am”)), Gothic 𐌹𐌼 (im, “am”), Ancient Greek εἰμῐ́ (eimĭ́, “am”), Old Armenian եմ (em, “am”), Albanian jam (“am”).

In classic literature

Synonyms

americium, atomic number 95

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