Although most crocodiles eat about 50 meals a year, they can survive a whole year, and sometimes even two or three years, without eating anything.
Vocabulary is commonly defined as all the words known and used by a particular person. Knowing a word, however, is not as simple as merely being able to recognize or use it. There are several aspects of word knowledge that are used to measure word knowledge.
In linguistics, a word is the smallest element that can be uttered in isolation with semantic or pragmatic content (with literal or practical meaning). This contrasts deeply with a morpheme, which is the smallest unit of meaning but will not necessarily stand on its own.