pedestal vs socle

pedestal and socle both are nouns.

Word	Noun	Adjective	Verb	Adverb
pedestal	Yes	No	No	No
socle	Yes	No	No	No

As nouns, socle is a hyponym of pedestal; that is, socle is a word with a more specific, narrower meaning than pedestal:

pedestal (noun)	socle (noun)
a support or foundation	a plain plinth that supports a wall
an architectural support or base (as for a column or statue)
a position of great esteem (and supposed superiority)