laryngectomy vs ablation

laryngectomy and ablation both are nouns.

Word	Noun	Adjective	Verb	Adverb
laryngectomy	Yes	No	No	No
ablation	Yes	No	No	No

As nouns, ablation is a hypernym of laryngectomy; that is, ablation is a word with a broader meaning than laryngectomy:

laryngectomy: surgical removal of part or all of the larynx (usually to treat cancer of the larynx)
ablation: surgical removal of a body part or tissue

Other hypernyms of laryngectomy include cutting out, excision, extirpation.

laryngectomy (noun)	ablation (noun)
surgical removal of part or all of the larynx (usually to treat cancer of the larynx)	surgical removal of a body part or tissue
	the erosive process that reduces the size of glaciers