lade vs fill up

lade and fill up both are verbs.

Word	Noun	Adjective	Verb	Adverb
lade	No	No	Yes	No
fill up	No	No	Yes	No

As verbs, fill up is a hypernym of lade; that is, fill up is a word with a broader meaning than lade:

Other hypernyms of lade include fill, make full.

lade (verb)	fill up (verb)
fill or place a load on	make full, also in a metaphorical sense
remove with or as if with a ladle	become full
	eat until one is sated
	fill or stop up