As nouns the difference between guard and detective

is that guard is a person who, or thing that, protects or watches over something while detective is detective (police officer who looks for evidence).

As a verb guard

is to protect from danger; to secure against surprise, attack, or injury; to keep in safety; to defend.

As nouns the difference between isothiazole and thiazolyl

is that isothiazole is (organic compound) an isomer of thiazole 1,2-thiazole , many of whose derivatives have biological activity while thiazolyl is (organic chemistry|especially in combination) a radical derived from thiazole.

As adjectives the difference between agglutinative and agglomerative

is that agglutinative is sticky, tacky, adhesive while agglomerative is having a tendency to agglomerate.

As nouns the difference between colonization and polonization

is that colonization is the process of establishing a colony while polonization is the process of polonizing.

As adjectives the difference between abstemious and shy

is that abstemious is sparing in diet; refraining from a free use of food and strong drinks; temperate; abstinent; sparing in the indulgence of the appetite or passions while shy is easily frightened; timid.

As a verb shy is

to avoid due to timidness or caution.

As a noun shy is

an act of throwing.

As adjectives the difference between strongwilled and assertive

is that strongwilled is while assertive is boldly self-assured; confident without being aggressive.