“sub”

26 symbols from Material Design Icons

submarine

subtitles

subway

subtitles-outline

subway-variant

subdirectory-arrow-left

subdirectory-arrow-right

subway-alert-variant

format-subscript

sim

attachment-minus

file-tree

forum-minus

paperclip-minus

playlist-check

sim-outline

smoke-detector

text-long

timer-minus

truck-minus

forum-minus-outline

package-variant-minus

timer-minus-outline

truck-minus-outline

vector-square-minus

package-variant-closed-minus