きゅうkyuu
1.

Describing a situation in which an action or event occurs quickly and without warning, often implying an urgent need for response.

2.

Characterizing a movement or flow that is rapid and intense, indicating high speed or momentum in progression.

3.

Denoting a state of urgency where immediate action is required due to pressing circumstances or time constraints.

4.

Referring to a steep or sharp incline, illustrating a significant degree of slope or gradient in physical structures or paths.

Example:

事態はを要するので一刻も待てないと彼は言った。

いそisogu
1.

To increase the speed of one's actions in order to complete a task or arrive at a destination within a limited timeframe, often implying a sense of urgency or pressure.

2.

To make a concerted effort to prioritize a task, ensuring that it is completed promptly and without delays.

3.

To prepare or get ready quickly for something imminent, reflecting a sense of anticipation or need for immediacy.

Example:

ニックはバスに間に合うように急いだ。

きゅうげき急激kyuugeki
1.

Describing a sudden and significant change or event that occurs rapidly and often unexpectedly.

2.

Characterizing a situation that escalates or deteriorates at a fast pace, highlighting the intensity of the transformation.

3.

Indicating a drastic shift in conditions or circumstances, where the degree of change is both swift and profound.

Example:

その党は急激にのびた。

きゅうそく急速kyuusoku
1.

Describing a situation or condition where events or changes occur at a high speed, often indicating an urgency or quickness in progress or development.

2.

Referring to a manner of advancing or evolving that is remarkably swift, suggesting a notable immediacy in the pace of occurrences or shifts.

3.

Characterizing actions or transformations that happen very quickly, emphasizing the speed and efficiency with which these processes unfold.

Example:

コンピューターは急速な進化を遂げた。

きんきゅう緊急kinkyuu
1.

A situation characterized by the necessity for immediate action or response due to its serious nature.

2.

Referring to a state where prompt measures are required to address a critical matter or unexpected event.

Example:

緊急の場合は、119番に電話しなさい。