The best replacement for initials is signature.

The best alternatives to initials are rated as following:
★★★★★  signature
★★★★★  monogram
★★★★  initial
★★  acronyms
★  thirty one
★  acronym

Your alternative for initials is not listed? Suggest!
Speaking about initials, one probably shouldn't forget about wings tattoo.

Other search terms related to initials and their ratings are:
★★★★★ wings tattoo
★★★★★ crown tattoo
★★★★ hearts tattoos
★★★★ angel wings tattoo
★★★ infinity tattoo
★★ buttons
You have in mind a companion for initials and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of initials in all years. Click on graph for more.
initials
signature
monogram