This site will be taken down March 31st, 2026.

This was not an easy decision to make. For the last couple years, I have been struggling to find motivation for this site and to keep up with basic maintenance and security updates. With the rise of AI and more sophisticated tools, the usefulness of sites like this is questionable and traffic has nose-dived. I just don't have it in me to keep doing this. Thank you all for 10 years of support!

Zach

Word

開始

かいし
start; commencement; beginning; initiation
Word

開発

かいはつ、かいほつ
development; exploitation
Word

開催

かいさい
holding a meeting; open an exhibition
Word

公開

こうかい
opening to the public; making available to the public; putting on display; exhibiting; showing (play, movie, etc.); holding (interview, etc.); open; public
Word

開業

かいぎょう
opening a business; opening a practice
Word

展開

てんかい
development; evolution; progressing; unfolding; expansion; spreading out; extending; deployment; building up
Word

開設

かいせつ
establishment; opening
Word

開く

空く、明く
あく
to open (e.g. doors); to open (e.g. business, etc.); to be empty; to be vacant; to be available; to be free; to be open (e.g. neckline, etc.); to have been opened (of one's eyes, mouth, etc.); to come to an end; to open (one's eyes, mouth, etc.); to have a hole; to form a gap; to have an interval (between events)
Word

開く

ひらく
to open; to undo; to unseal; to unpack; to bloom; to unfold; to spread out; to open (for business, e.g. in the morning); to be wide (gap, etc.); to widen; to hold (meeting, etc.); to give; to open; to found (nation, dynasty, sect, etc.); to open (a new business); to set up; to establish; to start; to open (ports, borders, etc.); to open (an account); to open up (new land, path, etc.); to clear; to develop; to open (a file, etc.); to extract (root); to reduce (equation); to cut open (fish); to change (kanji into hiragana); to flare (e.g. skirt); to slacken (into a poor posture)
Word

開通

かいつう
opening; open; taking effect; becoming active