'If an individual of national security interest entered the UK as an illegal migrant, we would take the firmest possible steps, which could include removal, action by law enforcement or other appropriate measures.

Source: https://www.dailymail.co.uk/news/article-11958145/Almost-20-suspected-terrorists-crossed-Channel-small-boats-year.html?ns_mchannel=rss&ns_campaign=1490&ito=1490

It's the firmest surface I've laid on since my last camping trip.

Source: https://www.wired.com/gallery/best-mattresses/

Mr Biden said the trans-Atlantic relationship is “rock solid”, while Mr Sunak hailed the US and UK as “two of the firmest allies” in Nato.

Source: https://www.independent.co.uk/news/uk/home-news/rishi-sunak-nato-ukraine-war-b2372950.html

This one-on-one navigation helps to lessen the amount of debt they will end up with as a student and to ensure they are able to start their new careers on the firmest footing possible.

Source: https://www.bangordailynews.com/2023/03/28/opinion/opinion-contributor/maine-parents-education-training/

“We stand as two of the firmest allies in that alliance and I know we’ll want to do everything we can to strengthen Euro-Atlantic security,” he said.

Source: https://www.independent.co.uk/news/world/americas/us-politics/biden-king-charles-sunak-windsor-guard-b2372913.html