When traveling to the Czech Republic or communicating with Czech speakers, it’s helpful to know some essential phrases, especially when it comes to postal services and general communication. Below are some useful Czech phrases that will facilitate your interactions with locals when sending or receiving mail and in various communication contexts.

Dopis
Definition: A letter.
Mohu mít známky pro dva dopisy, prosím?
Translation: Can I have stamps for two letters, please?

Balík
Definition: A package or parcel.
Posílám tento balík do Anglie.
Translation: I’m sending this package to England.

Poštovní schránka
Definition: Mailbox or postbox.
Kam mám dát dopis? Je tu někde poštovní schránka?
Translation: Where should I put the letter? Is there a mailbox around here?

Pošta
Definition: Post office.
Na které poště mohu poslat balík do zahraničí?
Translation: At which post office can I send a package abroad?

Známka
Definition: Stamp.
Potřebuji známku na dopis do Kanady.
Translation: I need a stamp for a letter to Canada.

Doručit
Definition: To deliver.
Kdy bude můj balík doručen?
Translation: When will my package be delivered?

Adresa
Definition: Address.
Zapomněl jsem napsat adresu na obálku.
Translation: I forgot to write the address on the envelope.

Odesílatel
Definition: Sender.
Na balíku není uveden odesílatel.
Translation: The sender is not indicated on the package.

Příjemce
Definition: Recipient.
Jste příjemce tohoto dopisu?
Translation: Are you the recipient of this letter?

Sledování zásilky
Definition: Parcel tracking.
Můžu dostat číslo pro sledování zásilky?
Translation: Can I get a tracking number for my parcel?

Telefonní hovor
Definition: Telephone call.
Očekávám důležitý telefonní hovor.
Translation: I’m expecting an important telephone call.

Textová zpráva
Definition: Text message.
Poslal jsem ti textovou zprávu s detaily.
Translation: I sent you a text message with the details.

E-mail
Definition: Email.
Poslal jsem odpověď na tvůj e-mail.
Translation: I sent a reply to your email.

Voicemail
Definition: Voicemail.
Nenechal jsi mi žádný voicemail.
Translation: You didn’t leave me any voicemail.

Komunikovat
Definition: To communicate.
Jak nejlépe s vámi mohu komunikovat?
Translation: How can I best communicate with you?

Understanding these phrases will make navigating mailing and communication services in the Czech Republic easier. Always remember to be polite and use “prosím” (please) and “děkuji” (thank you) for a positive interaction with the locals. Happy communicating!