ひろhiroがるgaru
1.

To increase in width or area, signifying an expansion or opening up, such as when a folded object unfurls.

2.

To diffuse or extend over a large range or area, indicating a widespread occurrence or distribution, as in the spread of a rumor or disease.

3.

To grow in scale or scope, representing an increase in the extent of activities or operations, such as in business or personal engagements.

4.

To unfold or present a broad view before one's eyes, as when a landscape or plain spreads out beneath someone.

Example:

うわさは四方八方に広がった。

moeひろhiroがるgaru
1.

To expand in flames over a large area, as in the case of a wildfire spreading rapidly across land.

2.

To propagate or increase in intensity, often used to describe how a fire moves from one location to another, engulfing everything in its path.

3.

To diffuse heat or light from a central point, leading to a broader area being affected by the fire's energy.