What is the meaning of Ech?

I

I (first person pronoun)

Alternative spelling of

every (all of a group)

each (all of a group, seen individually)

any; at all

All kinds of.

each one

every one

horse

H-system spelling of

first-person singular, nominative: I

argh! (used to express disappointment, despondence, or impatience)

genitive plural of echo

Source: wiktionary.org