The way that some vocabulary words are given, they are given with not only the basic gloss but additional usage of it as it might also be frequently used in a given context. For example, in Mounce's textbook (who gets his vocabulary from Klein and a bit from Metzger lists the meaning for καρδία as both "heart" and "inner self." But is learning "inner self" really necessary? Isn't that a metaphorical meaning that one should learn to recognize by reading the word in its context instead of memorizing?
Also, is it recommended to learn some additional synonyms for certain words? For example, instead of learning "I see" is it advisable to also learn "I notice, look at, watch, observe, study, etc." depending on the nuances of the word? Or again is that something one should learn to pick up by the context?