Squiggly line

[Trazon1]

I have Libreoffice Writer. I just wanted to know what the squiggly blue lines mean. Thanks in advance.

[pmfrench]

The grammar checker is marking something it thinks is wrong.

[Trazon1]

What is the difference between the blue and the red squiggly lines?

[sveinki]

@Trazon1: Blue is a warning for grammar check and red is spelling check.