This is the 9264th most frequent Japanese word.
略式
"略式" means "informal" or "simplified."
略式 is used here to mean 'simplified' or 'brief format', emphasizing that the contract is not in a detailed or formal style.
この契約書は略式で作成されています。
This contract has been prepared in a simplified format.
Here, 略式 denotes an 'informal' or 'casual' manner, referring to the nature of the birthday celebration as less formal.
略式誕生日会を計画しました。
We planned a casual birthday party.
In this case, 略式 means 'summary' or 'simplified' procedures, particularly in a legal context, indicating an expedited process.