

| Acronym | Sense | Language | Topics | 
|---|---|---|---|
| M | Maxwell | In many languages | → Physics | 
| M | Methionine = M | Metionina | In Catalan = M | Methionin | In German = M | Metionina | In Spanish = M | Metionino | In Esperanto = M | Méthionine | In French = M | 메티오닌 | In Korean = M | Metionin | In Indonesian = M | Metionina | In Italian = M | Metionin | In Croatian = M | מתיונין | In Hebrew = M | Metionīns | In Latvian = M | Methionin | In Letzeburgesh = M | Metioninas | In Lithuanian = M | Methionine | In Dutch = M | メチオニン | In Japanese = M | Metionin | In Norwegian = M | Metionina | In Polish = M | Metionina | In Portuguese = M | Метионин | In Russian = M | Метионин | In Serbian = M | Metioniini | In Finnish = M | Metionin | In Swedish = M | Metiyonin | In Turkish = M | Метіонін | In Ukrainian = M | 蛋氨酸 | In Chinese | In English | → Biochemistry, biophysics | 
| M | Metionina = (look above) | In Catalan | → Biochemistry, biophysics | 
| M | Methionin = (look above) | In German | → Biochemistry, biophysics | 
| M | Metionina = (look above) | In Spanish | → Biochemistry, biophysics | 
| M | Metionino = (look above) | In Esperanto | → Biochemistry, biophysics | 
| M | Méthionine = (look above) | In French | → Biochemistry, biophysics | 
| M | 메티오닌 = (look above) | In Korean | → Biochemistry, biophysics | 
| M | Metionin = (look above) | In Indonesian | → Biochemistry, biophysics | 
| M | Metionina = (look above) | In Italian | → Biochemistry, biophysics | 
| M | Metionin = (look above) | In Croatian | → Biochemistry, biophysics | 
| M | מתיונין = (look above) | In Hebrew | → Biochemistry, biophysics | 
| M | Metionīns = (look above) | In Latvian | → Biochemistry, biophysics | 
| M | Methionin = (look above) | In Letzeburgesh | → Biochemistry, biophysics | 
| M | Metioninas = (look above) | In Lithuanian | → Biochemistry, biophysics | 
| M | Methionine = (look above) | In Dutch | → Biochemistry, biophysics | 
| M | メチオニン = (look above) | In Japanese | → Biochemistry, biophysics | 
| M | Metionin = (look above) | In Norwegian | → Biochemistry, biophysics | 
| M | Metionina = (look above) | In Polish | → Biochemistry, biophysics | 
| M | Metionina = (look above) | In Portuguese | → Biochemistry, biophysics | 
| M | Метионин = (look above) | In Russian | → Biochemistry, biophysics | 
| M | Метионин = (look above) | In Serbian | → Biochemistry, biophysics | 
| M | Metioniini = (look above) | In Finnish | → Biochemistry, biophysics | 
| M | Metionin = (look above) | In Swedish | → Biochemistry, biophysics | 
| M | Metiyonin = (look above) | In Turkish | → Biochemistry, biophysics | 
| M | Метіонін = (look above) | In Ukrainian | → Biochemistry, biophysics | 
| M | 蛋氨酸 = (look above) | In Chinese | → Biochemistry, biophysics |