airmail (n)
/ˈer.meɪl/ 

a system of sending letters and parcels by aircraft

weigh (v)
/weɪ/

to have a heaviness of a stated amount, or to measure the heaviness of an object

receive (v)
/rɪˈsiːv/

to get or be given something

recipient (n)
/rɪˈsɪp.i.ənt/

a person who receives something

sender (n)
/ˈsen.dɚ/

a person who sends something

postal service (n)
/ˈpoʊ.stəlˈsɝː.vɪs/

a system of collecting and delivering letters, etc.

postal worker (noun phrase)
/ˈpoʊ.stəlˈwɝː.kɚ/

one who works for a post office, such as a mail carrier

send (v)
/send/

to cause something to go from one place to another, especially by post or email

mailbox (n)
/ˈmeɪl.bɑːks/

picture of a house  a small box near the main door of a building or by the road, which mail is delivered to

fill out (phrasal verb)
/fɪl aʊt/

to make or become full; to use empty space

letter (n)
 /ˈlet̬.ɚ/

a message that you write on a piece of paper and send to someone

postcard (n)
/ˈpoʊst.kɑːrd/

a card, often with a photograph or picture on one side, which can be sent without an envelope

package (n)
/ˈpæk.ɪdʒ/

an object or set of objects wrapped in paper, usually in order to be sent by post

postage (n)
/ˈpoʊ.stɪdʒ/

the money that you pay for sending letters and parcels through the post

stamp (n)
/stæmp/

a small piece of paper with a picture or pattern on it that is stuck onto a letter or package before it is posted, to show that the cost of sending it has been paid

bubble wrap (n)
 /ˈbʌb.l ræp/

a sheet of plastic containing bubbles of air that is used for protecting things while they are being moved or sent by post

parcel (n)
/ˈpɑːr.səl/

something wrapped in paper or in a large envelope to be sent by post

fragile (a)
 /ˈfrædʒ.əl/

easily damaged, broken, or harmed

pack (v)
/pæk/

to put something into a bag, box, etc.

post office (n)
/pəʊst ˈɒf.ɪs/

a place where stamps are sold and from where letters and parcels are sent