What definition is closest in meaning to the word penetrate in the sentence The deep sea divers kept warm by wearing suits that water could not penetrate?
"Penetrate" in this sentence means "pass through" as in "pass
through a barrier", as the suit created a barrier through which no
water could pass. It also has the meaning of "enter through an
orifice", as there were no holes in the suit through which the
water could enter.