tranquillise vs tranquillize

tranquillise and tranquillize both are verbs.

Word	Noun	Adjective	Verb	Adverb
tranquillise	No	No	Yes	No
tranquillize	No	No	Yes	No

As verbs, tranquillise and tranquillize are synonyms defined as:

tranquillise and tranquillize: cause to be calm or quiet as by administering a sedative to

Other synonyms of tranquillise include calm, sedate, tranquilize.

As verbs, tranquillise and tranquillize are synonyms defined as:

Other synonyms of tranquillise include calm, calm down, lull, quiet, quieten, still, tranquilize.

tranquillise (verb)	tranquillize (verb)
cause to be calm or quiet as by administering a sedative to	cause to be calm or quiet as by administering a sedative to
make calm or still	make calm or still