Meaning of “distil” - Learner’s Dictionary

distil

verb [ T ] present participle distilling, past tense and past participle distilled UK US distill us uk /dɪˈstɪl/

to make a liquid stronger or more pure by heating it until it changes into a gas and then changing it into a liquid again:

distilled water
distillation noun [ U ] us uk /ˌdɪstɪˈleɪʃən/
distillery noun [ C ] us uk /dɪˈstɪləri/

(Definition of “distil” from the Cambridge Learner’s Dictionary © Cambridge University Press)