Laughter echoed, joy contagious.

Meaning: The joy of the memory was so great that it spread to others, making them laugh too.

Choice of Words: A contagious disease is one that can be spread from one person to another. Laughter is a vocal expression of amusement or joy. Echoed means to be repeated or heard again, especially as a sound bouncing off a surface.

Alternative Expressions

Laughter filled the air, joy spread like wildfire.

Meaning: This sentence describes a situation where laughter was filling the space and the joy was spreading quickly and easily among everyone.

Choice of Words: "Laughter" is a noun that refers to the act of laughing, which is a joyful expression. "Filled the air" is a phrase that means to occupy or pervade a space, suggesting that the laughter was abundant and present everywhere. "Joy" is a noun that describes a feeling of great happiness and delight. "Spread like wildfire" is a simile that compares the spread of joy to the rapid and uncontrollable spread of a wildfire, implying that the joy was quickly and easily shared by everyone present.

Laughter cascaded through the crowd, joy infectious.

Meaning: This sentence describes a situation where laughter was flowing through the crowd like a waterfall, and the joy was easily spread among everyone.

Choice of Words: "Laughter" is a noun that refers to the act of laughing, which is a joyful expression. "Cascaded" is a verb that means to fall or flow in a continuous stream, suggesting that the laughter was continuous and flowing through the crowd. "Joy" is a noun that describes a feeling of great happiness and delight. "Infectious" is an adjective that means causing or spreading disease, but in this context, it is used figuratively to imply that the joy was easily passed on to others.

Related Expressions