The society of Othello is male-dominated, to say the least. In structure and language, the male characters drive the action, while the female characters passively wait. The male reputation is vaunted, while the female reputation is sullied. Males repeatedly and openly use discriminatory language not only against women in general, but against their wives. Iago calls his wife a "villainous whore." Othello calls Desdemona "whore" even more. Other names afforded to women include: "foul," "villainous," and "false."
"Whore" is used 13 times:
Synonymous with "whore" and no less damaging are words that describe how talkative and unquiet women are. Desdemona says this of Othello:
AND to Othello:
Iago says of his own wife:
As counterpoint, the word "honest" appears over fifty times in the play, usually said by or describing a male. Observe:
So, it is clear: for women to talk is to be loose not only with the tongue, but in bed. Men see women who talk a lot as "whores." If Desdemona is talking with Cassio, she might as well be sleeping with him. And the classic double-standard: men can talk against women openly, but married women cannot talk to men at all, either privately or publicly.
Women are in an unwinnable situation in Othello. Desdemona doesn't talk. She doesn't defend herself in the bedroom, and she is strangled. Emilia talks. She exposes her husband in Act V, and she is stabbed. It's a morbid double standard. If women talk, they are victimized. If women don't talk they are victimized.
To say men use discriminatory language is an understatement.
One of the most discriminatory characters in the play is Iago, and if you read his lines when he is addressing Emilia or Desdemona or talking about women, he degrades them constantly and makes them out to be inconstant and fickle, a point he uses to drive the wedge between Othello and Desdemona.
This constant degredation and the idea that women are not on the same level as men helps to create the idea that Othello can trust Iago instead of actually asking Desdemona what is happening with her and Cassio. There is little impetus to speak openly with women or to trust them and part of this is driven by that discriminatory imagery and language used by the characters.
Other examples are the way that characters look at and speak about Othello as a moor.