1 tide

2 current

3 damp

4 moist

5 humid

1 tide

2 current

3 trend

1 to protect

2 to defend

3 to guard against

4 to prevent

1 to prevent

2 to guard against

3 to take precautions

1 to prevent

2 to take precautions against

3 to protect

4 to guard against

5 precautionary

6 prophylactic

1 to guard against the unexpected (idiom); just in case

2 prepared for any eventualities

1 frugality in order to prevent destitution (idiom)

1 an ant hole may cause the collapse of a great dike (idiom)

2 huge damage may result from a moment's negligence

1 thoughts surging in one's mind (idiom)

2 different thoughts coming to mind

1 lit. easy to dodge the spear in the open, hard to avoid a stab in the dark (idiom); it is hard to guard against secret conspiracies