Aliquis est quam does not represent a complete sentence, so it's hard to know exactly how to translate it. Quam can mean either "whom" or "than", and there's no way to tell which is intended without knowing the rest of the sentence (though "whom" is statistically more likely). For example:
If quam is "whom", we know that the "someone" referred to is female (otherwise it would be quem).
The classic phrase Esse quam videri could be translated this way. It literally means "to be as you seem".
The English meaning of the Latin exclamation 'Quam pulcher est' is How beautiful he is! In the word-by-word translation, the word 'quam' means 'how'. The adjective 'pulcher' means 'beautiful'. The verb 'est' means '[he/she/it] is'.
in vita plura quam modo vivere
Not for how long.
'I agree with the power of rage' ~Anon.
The translation is "To be, rather than to seem".
Condition through which is the English equivalent of 'conditio per quam'. In the word by word translation, the noun 'conditio' means 'condition'. The preposition 'per' means 'through'. The relative pronoun 'quam' means 'which'.
Which supper did Cleopatra prepare for Mark Antony is the English equivalent of 'Quam cenam Cleopatra Marco Antonio preparavit'. In the word by word translation, the interrogative 'quam' means 'which'. The noun 'cenam' means 'dinner'. The verb 'preparavit' means '[he/she/it] did prepare'.
"Esse Quam Videri" Latin "To Be, Rather Than To Seem" English
Quam singulari was created in 1910.
Quam Limited was created in 1996.
C-QUAM was created in 1977.