Sentence:  For all their frailty at the back, Arsenal possessed genuine menace in attack and they carved through Chelsea with ease to restore <WSD>parity</WSD> nine minutes before half-time. Aaron Ramsey's pass was perfection and Gervinho took the unselfish option to set up Van Persie for a tap-in. 
Meaning of the word marked with <WSD> tags:  Equality; comparability of strength or intensity.