leading

US /ˈliː.dɪŋ/

UK /ˈliː.dɪŋ/

1.

most important; main

:

•

She played the leading role in the play.

•

He is a leading expert in the field of artificial intelligence.

:

principal main chief foremost top premier prime key dominant pre-eminent

2.

in front; ahead

:

•

The runner was leading the pack by a significant margin.

•

The company is leading the way in sustainable technology.

:

ahead in front foremost pioneering innovative

:

lead leaded lead on lead time lead singer take the lead lead story