What is the meaning of Esto?

neuter of esti

being

block, blocking, blockage, prevention

inhibition

interference

east

this

second/third-person singular future active imperative of sum

dative/ablative masculine/neuter singular of ēstus

neuter singular of este (“this”)

Like other masculine words, masculine pronouns can be used when the gender of the subject is unknown or when the subject is plural and of mixed gender.

Treated as if it were third person for purposes of conjugation and reflexivity.

If le or les precedes lo, la, los, or las in a clause, it is replaced with se (e.g. se lo dije instead of *le lo dije).

Used primarily in Spain.

Only used in certain circumstances and rarely as a subject pronoun.

Source: wiktionary.org