The best replacement for captions is subtitles.

The best alternatives to captions are rated as following:
★★★★★  subtitles
★  slogans
★  closed captions

Your alternative for captions is not listed? Suggest!
Speaking about captions, one probably shouldn't forget about pictures.

Other search terms related to captions and their ratings are:
★★★★★ pictures
★★★★★ photos
★★ images
★★ pics
★★ netflix streaming
funny pictures
flexslider
You have in mind a companion for captions and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of captions in all years. Click on graph for more.
captions
subtitles
slogans