If you mean the three letters, I can't help. But the word 'est' means 'is' in French and Latin.
In Spanish, este/esta/esto means this male/female/neuter; and
'esta' (with an accent over the 'a') = you (singular formal)/he/she/it is
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Another Viewpoint: The answer is quite likely to be: the standard abbreviation for Eastern Standard Time. That's the well known time zone in the USA.
However, the question is ambiguous.
It would depend on where you see the word. It could be a French word:
Est is either the cardinal direction east, or the verb être (to be) conjugated to the third person singular.
Je vais aller à l'est de Montréal; I am going to go east of Montréal.
Le chat est un animal féroce; A cat is a ferocious animal.
Unfortunately, the question is ambiguous. It could be about languages such as French or Latin. Also, it could be an abbreviation.
3pm EST is 8pm GMT. Eastern Standard Time (EST) is 5 hours behind Greenwich Mean Time (GMT).
200m GMT is equivalent to 3:20pm EST. Eastern Standard Time (EST) is 5 hours behind Greenwich Mean Time (GMT).
6.30 EST in Australia = 20.30 GMT 6.30 EST in America = 11.30 GMT
The answer to the dingbat "est est est est" is "Forrest" - "Four 'est' in a row" is pronounced similarly to "forest."
10:00 EST is equivalent to 15:00 GMT. EST (Eastern Standard Time) is 5 hours behind GMT (Greenwich Mean Time).
Mean ugly. est laid = to be ugly.
On est means It is.
"On est ..." means "we are ..." in French.
non est = He or she or it is not
Est means is
Est bona means "is good."
Comment est is translated "how is..." in English.
Est means is, as in he, she , it is in the present tense.
What is it.
Caecilius is in the atrium.
Est = Is Example ; Il 'est' mignon .. would be : He 'IS' cute.
est mean 'am' or 'is' eg: elle est zoey she is zoey or 'bonjour' est 'good morning' 'bonjour' is 'good morning'