名詞 pr.:

1. a soft yellowish-white trivalent metallic element of the rare earth group; can be recovered from bastnasite or monazite by an ion-exchange process
   同義詞：praseodymium, Pr, atomic number 59
2. a self-governing commonwealth associated with the United States occupying the island of Puerto Rico
   同義詞：Puerto Rico, Porto Rico, Commonwealth of Puerto Rico, PR
3. a promotion intended to create goodwill for a person or institution
   同義詞：public relations, PR

pr.
abbr.（略語）
Pair.
Pair.
Grammar Present.
【語法】 Present.
Price.
Price.

Printed.
已付印的
Printing.
正在印刷的
Grammar Pronoun.
【語法】 Pronoun.