1. (verb) work doggedly or persistently

• keep one's nose to the grindstone
• keep one's shoulder to the wheel
• peg away
• plug away

2. (verb) walk heavily and firmly, as when weary, or through mud

• footslog
• pad
• plod
• tramp
• trudge

3. (verb) strike heavily, especially with the fist or a bat

• slug
• swig

1. (verb) work doggedly or persistently

• work

2. (verb) walk heavily and firmly, as when weary, or through mud

• walk

3. (verb) strike heavily, especially with the fist or a bat

• hit

1. (verb) walk heavily and firmly, as when weary, or through mud

• slop
• slosh
• splash
• splosh
• squelch
• squish

1. (verb) work doggedly or persistently

• plodder
• slogger

2. (verb) walk heavily and firmly, as when weary, or through mud

• foot soldier
• footslogger
• infantryman
• marcher
• pad
• plod
• plodding
• plodder
• slowcoach
• slowpoke
• stick-in-the-mud
• plodder
• slogger
• plodder
• plodder
• slogger
• slogger
• trudger
• trudger
• stamper
• stomper
• tramper
• trampler
• trudge

3. (verb) strike heavily, especially with the fist or a bat

• batsman
• batter
• hitter
• slugger
• biff
• clout
• lick
• poke
• punch
• slug
• slogger
• slugger