1.
to load; to read in (data)
To load data or a file into a computer or device for processing.
ファイルを読み込む。
To load a file.
アプリがデータを読み込んでいる。
The app is loading data.
画像ファイルの読み込みに時間がかかっている。
Loading the image file is taking time.
2.
to read thoroughly; to study deeply
To read something carefully and repeatedly until one has absorbed its content completely.
台本を読み込む。
To study a script thoroughly.
試験前に教科書を何度も読み込んだ。
I read the textbook over and over before the exam.
彼は契約書を隅から隅まで読み込んでから署名した。
He read the contract thoroughly from corner to corner before signing.
読み込む is a transitive godan verb that combines 読む (to read) and 込む (into, deeply). The 込む element adds the nuance of thoroughness or inward movement.
ASPECT (ている):
読み込んでいる can mean either "is currently loading" (ongoing action for sense 1) or "has studied thoroughly" (resulting state for sense 2).
PARTICLE PATTERNS:
- Xを読み込む (load X / read X thoroughly)
COMMON COLLOCATIONS:
- データを読み込む (load data)
- ファイルを読み込む (load a file)
- 台本を読み込む (study a script)
The noun form 読み込み is commonly used in computing to mean "loading" (e.g., 読み込み中 = now loading).