(astronomy) a neutron star

(physics) density

(physics) gravity, gravitational force / (rare) considerable strength or power

to know, be aware of / to learn, acquire, / to be acquainted with, to know (someone) / (colloquial, in the negative) to care in the least about, to be concerned with,

hard, tough, stiff / stubborn

against one's will

strong / strength / powerful / potent

(lengths of time) slightly more than

a male given name

strong, durable, powerful / strong, competent, good / high tolerance, resilient