library(stringr)
fruits <- c("one apple", "two pears", "three bananas")
# Remove first occurance of regex pattern
str_remove(fruits, "[aeiou]")
#> [1] "ne apple" "tw pears" "thre bananas"
# Remove all occurances of regex pattern
str_remove_all(fruits, "[aeiou]")
#> [1] "n ppl" "tw prs" "thr bnns"