何か, なにか, なんか
Pronoun
1. something, some, any
Adverb
2. somehow, for some reason
Only なにか, Interjection
3. (so) what (are you trying to say)?, what (do you mean)?
ここまでのところで何か落としていることはありませんか。
覚える, 憶える, おぼえる
Ichidan verb, Transitive
1. to memorize, to memorise, to commit to memory, to learn by heart, to bear in mind, to remember
Only 覚える
2. to learn, to pick up, to acquire
3. to feel
4. to think, to regard
日本語は外人にとって覚えにくい。