必携

ひっけい

indispensable; essential; must-have; handbook

common word

Meaning

adj-non-suf
indispensable; essential; must-have
n
handbook; manual; vade mecum

Example sentences

TOEICの学習に限らず、英語を学ぶのであれば英和辞典は必携の書の一つでしょう。

An English-Japanese dictionary is surely a must have book, not just for those taking TOEIC, but for all studying English.