Democrats on Monday immediately called for legislative action in the wake of the mass shooting in Las Vegas Sunday night, but most made a point not to call specifically for "gun control."

Instead, Democrats used other terms to describe their goal, such as an end to "gun violence" or achieving improved "gun safety."

It's a sign that Democrats may be trying to subtly alter their message after years of failing to pass a gun control bill in the House or the Senate, even when Democrats were in charge of the Senate a few years ago.

Much of the press coverage has summarized the Democratic demands as a call for "gun control," even though few, if any, national Democratic politicians used that term.

In a press conference Tuesday, three Democrats talked about gun violence but carefully avoided the term "gun control."

"We need to do more to make the indiscriminate killing of human beings less easy, if that makes sense. Perhaps not a very poetic way of saying it," said Rep. Linda Sanchez, D-Calif.

"Until Congress makes it harder for dangerous people to acquire assault weapons, large magazine rounds, tragedies like this unfortunately are going to continue to happen," she added. "We need to have that discussion on gun safety."

An angry Sen. Chris Murphy, D-Conn., said Monday that Congress has to "get off its ass and do something." But he didn't specify what that "something" should be, even though some press reports of his comments filled in the blank for him and said he was talking about gun control.

"It is positively infuriating that my colleagues in Congress are so afraid of the gun industry that they pretend there aren't public policy responses to this epidemic," Murphy said Monday. "There are, and the thoughts and prayers of politicians are cruelly hollow if they are paired with continued legislative indifference. It's time for Congress to get off its ass and do something."

Rep. Seth Moulton, D-Mass., said he would skip the House's moment of silence for the victims of Las Vegas on Monday, but he also never referred to "gun control."

"As someone who's seen the effects of gun violence first hand at war, my heart goes out to the victims and families in Las Vegas. But now is not the time for silence – it's a time for action," he said.

House Minority Leader Nancy Pelosi's letter to Speaker Paul Ryan called for a committee on gun violence, but made no mention of "gun control."

"I urge you to create a Select Committee on Gun Violence to study and report back common sense legislation to help end this crisis," she wrote.

Democrats are pushing Republicans to expand background checks on gun purchasers, and to create the gun violence committee, which could recommend gun legislation. Republicans generally argue that perpetrators of gun violence are already breaking laws, and that new laws would be unlikely to curb violence.

Some were noting Tuesday that the suspect in the Las Vegas shooting, Stephen Paddock, passed several background checks when he bought guns in Nevada.

Nonetheless, Democrats this week kept up pressure for action that they described not as "gun control," but as an effort to curb "gun violence."

"We need to have the conversation about how to stop gun violence," said Sen. Elizabeth Warren, D-Mass. "We need it now."

Former Vice President Joe Biden wrote a similar tweet. "How long do we let gun violence tear families apart?" he asked on Twitter.

Others focused on "gun safety."

"It is long past time for Congress to take action on gun safety to save innocent lives," tweeted Sen. Bernie Sanders, I-Vt.

And still others focused on more general language that talked about "action" or finding unspecified ways to stop future mass shootings.

"We need every American to speak up — now," wrote Rep. Elizabeth Esty, D-Conn. "We need to bring responsible gun owners to the table and find a way forward."

"Our grief isn't enough," wrote 2016 Democratic presidential nominee Hillary Clinton. "We can and must put politics aside, stand up to the NRA, and work together to try to stop this from happening."